You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I'm Sharon Wilson.

ASSISTANT: How can I assist you today?

USER: I am planning to attend a music concert at Seattle, can you please help me with booking a flight ticket?

ASSISTANT: Sure, will you provide your travelling dates please?

USER: Sure, I would like to take off on 01/26 and return back on 01/28.

ASSISTANT: Please mention your airport codes of travelling.

USER: My source airport code is DCA and the destination airport code is SEA.

ASSISTANT: Please give me a moment. Please give me a moment.

USER: Ok, but please make sure that the price limit does not exceed 500.

ASSISTANT: There is a flight with price 100 and the connections 1 is avialble.

USER: Ok, please proceed with the booking.

ASSISTANT: Your ticket is booked. The flight number is 1017.

USER: I appreciate your help, thank you.

ASSISTANT: Welcome, have a great day.