You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I am Susan Mitchell, want to travel from DCA toIAH. Please help me in booking.

ASSISTANT: Sure, I am here to help you out. Please provide me your trip dates.

USER: Sure, my travelling dates are from 02/27 to 02/29.

ASSISTANT: Please wait a moment and let me know the availability of the flights.

USER: Sure.

ASSISTANT: Here is a flight with 1 stop and price is 200 in 1017 AA airlines, can I proceed with it?

USER: Please proceed with the booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for reaching us.