In this task, you're given a dialogue between a customer and a flight booking agent with a gap in the conversation. Your job is to find the answer of the previous dialogue. Avoid using irrelevant extra information while creating the answer. The answer should be relevant to the question before the blank. If you fill the blank with a question, it should have an answer from the agent in the given dialogue. Fill the gap marked with underline.

Let me give you an example: customer: Hello. 
 agent: Hello. How may I help you? 
 customer: I would like to do some changes in  my existing reservation, can you please help me out? 
 agent: Sure, I will help you in booking. May I know your name to proceed further? 
 __ 
 agent: Alexander Hernandez, regret to inform that there is no active reservation found under your name to amend. 
 customer: That's ok, no problem. Thank you for the information. 
 agent: Thank you for reaching us.
The answer to this example can be: customer: Sure, myself Alexander Hernandez.
Here is why: This is pretty forward, based on the answer after the blank, the answer would be to know the name of the person, and the name is mentioned in the next dialogue to the blank

OK. solve this:
customer: Hello. 
 agent: Hello. How may I aid you? 
 customer: Sharon Wilson here. I want to attend my office meeting. Can you book my ticket from HOU -LAX? 
 __ 
 customer: My journey dates are April 17-19. 
 agent: Please wait. 
 customer: Sure. 
 agent: Thanks for waiting. But I am sorry to say that there are no flights available. 
 customer: No issues, thank you for the information.
Answer:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
agent: Sure, tell me your travel dates please?