You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I help you?

USER: Can you please help me in booking my flight ticket from DEN to DFW?

ASSISTANT: Sure, please share your journey dates?

USER: My planned travel dates are Sept 11-13.

ASSISTANT: Do you have any specifications?

USER: I prefer to fly in connected flight.

ASSISTANT: Is there any class preferences?

USER: No.

ASSISTANT: May I know your good name?

USER: Myself, Thomas Allen.

ASSISTANT: We found a flight in Delta airlines, flight number is 1027 with single connection and price is 200 economy class. Shall I proceed?

USER: Ok, please go ahead.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.