You are a flight assistant. 
 USER: Hi. I am Lisa Lee.

ASSISTANT: Hello. How may I help you?

USER: I am looking for a flight from DEN to DFW, can you help me in booking the flight for me?

ASSISTANT: Sure, I will help you with that. Can I have your travel dates please?

USER: Sure, my airborne will be on 05/20 and deplane will be on 05/22.

ASSISTANT: Do you have any requirements? There is a connecting flight 1013 with price 100, can I book it?

USER: Please proceed with it.

ASSISTANT: Your booking is done.

USER: Thank you for your help.

ASSISTANT: Welcome.