You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I render you at this moment?

USER: I want to attend for an interview in Denver, so please book a flight ticket from SFO to DEN.

ASSISTANT: Sure, may I know on which dates would you like to travel?

USER: I want to fly on Mar 01, return on Mar 03.

ASSISTANT: Please let me know your connection limit.

USER: I want a flight with one connection.

ASSISTANT: Do you have any class preference?

USER: I want economy class.

ASSISTANT: May I know your name please?

USER: Timothy Moore.

ASSISTANT: Ok, please hold on for a moment.

USER: Sure.

ASSISTANT: We found a connecting flight with United airlines, price is 200 in economy class. Shall I proceed?

USER: Ok, proceed to booking.

ASSISTANT: Your ticket has been reserved with 1025 flight number.

USER: Thank you.

ASSISTANT: Thank you for choosing our services.