You will be given a definition of a task first, then some input of the task.
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.

customer: Hello, Patricia Parker here. 
 __ 
 customer: I would like to visit Studio Tour in Los Angeles, please book my ticket from SEA to LAX. 
 agent: Please share your journey dates. 
 customer: My trip dates are 09/24 and 09/26. 
 agent: Please wait for a moment. 
 customer: Sure. 
 agent: Sorry, there is no flights available on your mentioned dates. 
 customer: It's ok, thank you for the information. 
 agent: Thank you for reaching us.
Output:

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: Hello, how may I help you?