Teacher: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.
Teacher: Now, understand the problem? Solve this instance: customer: Hello. 
 agent: Hello, how may I aid you? 
 customer: I am Stephen Johnson want to meet my grandparents who are living in Washington, can you help me to book a direct flight? 
 agent: Sure, may I know your airport codes, please? 
 customer: Yes, I would like to travel from PHX to IAD. 
 __ 
 customer: Sure, my travel dates are 05/07 and 05/09. 
 agent: Thanks for giving your details, we found a flight on your details with airline UA, flight number: 1005. Shall I proceed for booking? 
 customer: Yes, please. 
 agent: Your ticket has been booked. 
 customer: Thank you. 
 agent: Thanks for choosing us.
Student:
agent: Let me know your travel dates please?