You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I am Karen Jackson.

ASSISTANT: Yes, Karen.

USER: I am planning to book a ticket from DEN to DEN. Can you please help me out?

ASSISTANT: Sure, may I know your journey dates please?

USER: I am planning to travel on 12/01 and return back on 12/03.

ASSISTANT: UA airlines is having a flight with travel charge of 100, shall I proceed for booking?

USER: Yes, you can book it.

ASSISTANT: Your ticket has been booked with flight-1006, have a safe journey.

USER: Thank you for reaching us.

ASSISTANT: Thank you for choosing us.