You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Can you please help me in booking a flight ticket from Denver, DEN to reach Dallas, DFW?

ASSISTANT: Your travelling dates please?

USER: My journey dates are from Apr 21 to Apr 23.

ASSISTANT: Do you have any specifications?

USER: I need a break in between journey.

ASSISTANT: Any thing else?

USER: No, thanks for asking.

ASSISTANT: There is a flight with single connection in American airlines, can I proceed for booking in economy class?

USER: Sure, you can proceed for booking.

ASSISTANT: On which name can I proceed for booking?

USER: My name is Barbara Carter.

ASSISTANT: Your booking is done in 1017 flight.

USER: Thanks for your help.

ASSISTANT: Thank you for choosing us.