You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you today?

USER: I want to reserve my ticket from DEN to DFW, can you please help me in this?

ASSISTANT: Sure, could I have your journey dates, please?

USER: Sure, my planned dates of journey are from Dec, 29 to Dec, 31.

ASSISTANT: Do you have any specifications?

USER: No.

ASSISTANT: On what name, do I need to reserve the ticket?

USER: Sure, my name is Stephen Robinson.

ASSISTANT: We found a connecting flight 1001 from Southwest airline with a fare 100.

USER: Ok, you can book it.

ASSISTANT: Shall I proceed?

USER: Ok.

ASSISTANT: Your ticket has been confirmed in economy class.

USER: Thank you for your service in booking my ticket.

ASSISTANT: Thank you for reaching us.