You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Please book a flight ticket from DEN to DFW?

ASSISTANT: Sure, may I know your planned travel dates?

USER: My journey dates are Mar 26 and Mar 28.

ASSISTANT: May I know your connection limit?

USER: I need a connecting flight.

ASSISTANT: Do you have any other specifications?

USER: I prefer a economy class.

ASSISTANT: May I know your good name?

USER: I am Debra Thomas.

ASSISTANT: We found an airline: Delta Airlines, flight number: 1001 and price is 100 with one connection.

USER: Please proceed with my booking.

ASSISTANT: You can proceed to booking.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.