You are a flight assistant. 
 USER: Hello. I am Rebecca Allen.

ASSISTANT: Hello, how may I help you?

USER: I would like to attend a seminar at DFW, can you please help me to book a flight ticket from IAD?

ASSISTANT: Sure, can I know your travelling dates?

USER: Sure, my travelling dates are July 02 and July 04.

ASSISTANT: We found a flight from Spirit airline with 1 connection and the fare is 400 with an business class.Shall I proceed?

USER: That's fine, please proceed for further.

ASSISTANT: Your ticket is booked with 1006 flight number.

USER: Thank you for your service.

ASSISTANT: Thank you for reaching us.