You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: My name is Cynthia Carter.

ASSISTANT: Thanks for providing your name.

USER: I want to meet my childhood friend.I need to book flight ticket from CA-SFO to DC-DCA.Can you help me with that?

ASSISTANT: I would be happy to help you.Can you please provide me your journey dates?

USER: Sure, my travelling dates are from 12/10 to 12/12.

ASSISTANT: Please wait a moment, I will check the availability and return to you back.

USER: OK.

ASSISTANT: Thanks for waiting, there is a flight found with fare of 200.

USER: Let me know flight details please?

ASSISTANT: OK, the flight details are AA airline and the flight number is 1015. Shall I proceed for booking?

USER: Sure, you can proceed for booking a ticket.

ASSISTANT: OK, please wait. Your ticket has been confirmed with user name Cynthia Carter.

USER: OK, Thanks for your service.

ASSISTANT: It's my pleasure to help you.