You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you today?

USER: I am Stephanie Carter. Can  you help me in booking from IAD to DCA?

ASSISTANT: Ok, can you please let me know your trip dates?

USER: My travelling dates are 09/09 to 09/11.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thank you for waiting, flight-1018 is available in AA airlines with price 100 only. Shall I book the ticket for you?

USER: You can book it.

ASSISTANT: I have successfully booked your ticket.

USER: Thank you for helping.

ASSISTANT: Thank you very much for choosing us and happy journey.