You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Could you please help me to book a ticket from DEN to DFW?

ASSISTANT: Sure, I am willing to help you for this. When would you like to travel?

USER: My travelling dates are on Jan 24 and Jan 26.

ASSISTANT: Is there any other specifications regrading your journey?

USER: I need only single connection.

ASSISTANT: Do have any criteria?

USER: No.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: As per your criteria, there is a flight with United Airlines and the ticket fare is 200. Would you like me to make the booking now?

USER: You can proceed for booking.

ASSISTANT: For reserving the ticket. May I know your name please?

USER: Emma Baker.

ASSISTANT: Your ticket is reserved in economy class with the flight-1003. Your depart time is 22:00 PM and again your arrival time is 15:00 PM.

USER: Thank you for reserving my ticket.

ASSISTANT: Thank you very much for contacting our agency.