You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Dorothy Adams. I would like to fly from Washington, can you please aid me in booking a flight ticket to DFW?

ASSISTANT: May I know your desired travel dates please?

USER: My travel dates are May 25th and May 27th.

ASSISTANT: May I know your source airport code please?

USER: My source airport code is IAD.

ASSISTANT: There is a flight with connection limit 1 and fare 100, shall I proceed for booking?

USER: You can proceed.

ASSISTANT: Your ticket is booked, flight number 1027.

USER: Thank you.

ASSISTANT: Thank you for contacting us.