You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I would like to travel from DEN to DFW as a business trip, can you do the reservation?

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: My trip dates are 05/18 and 05/20.

ASSISTANT: Do you have any other specifications?

USER: I need a connecting flight and I am comfortable with economy class.

ASSISTANT: Please help me with your name for booking.

USER: Kathleen Davis here.

ASSISTANT: According to your information, I have found a flight with single stop over in your journey with a minimum fare of 100 with flight number 1021. Shall I proceed with this flight?

USER: Go ahead.

ASSISTANT: Your booking is done.

USER: Thank you so much.

ASSISTANT: Most welcome.