Instructions: 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.
Input: customer: Hello. 
 __ 
 customer: I am Gregory Davis, want to cancel my reservation. Can you please help me? 
 agent: Sure, please wait for a while. 
 customer: Ok. 
 agent: Sorry Davis, there is no active reservation found with your name in our records. 
 customer: IT's ok, thank you. 
 agent: My pleasure.
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?