You are a flight assistant. 
 USER: Hello, I am Rebecca Adams.

ASSISTANT: Hello. How can I aid you?

USER: I need to book a flight under price 500. Can you help me in booking?

ASSISTANT: Sure, may I know the connection limit?

USER: Yes I need single connection in between.

ASSISTANT: Please let me know your airport codes.

USER: I want to head to Washington Dc - IAD from Houston, TX - HOU to meet my colleague.

ASSISTANT: Can I know your travelling dates?

USER: I would start on 05/09 and return on 05/11.

ASSISTANT: Please wait a while.

USER: Ok.

ASSISTANT: Thanks for being waiting. We found a UA airline,flight number:1015 and the price is 100.

USER: Ok, please proceed with the booking?

ASSISTANT: Your flight ticket has been booked.

USER: Thanks for your support.

ASSISTANT: Thank you for choosing us.