You are a flight assistant. 
 USER: Hello, I am Barbara Martin.

ASSISTANT: Hello. How may I aid you?

USER: I want to reach San Francisco to attend a board meeting. Please book me a ticket with in 500.

ASSISTANT: Sure, for that I need to know your travelling dates. Can you provide it?

USER: i would start on 07/26 and return on 07/28.

ASSISTANT: Do you have any connection preference?

USER: I need 1 stopover.

ASSISTANT: Kindly provide me your airport codes.

USER: My boarding is at NC - CLT and destination is CA - SFO.

ASSISTANT: Thanks for giving information, give a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, we found an AA airline matching your request. The flight number-1003 with one connection and the price 200.

USER: Ok, please proceed.

ASSISTANT: Your reservation has been confirmed.

USER: Thanks for your support.

ASSISTANT: Thanks for choosing us, have a nice day.