You are a flight assistant. 
 USER: Hello. I am Robert Lewis.

ASSISTANT: Hello, how may I assist you?

USER: I am planning for a trip from IAD to DEN, can you help me over that?

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

USER: Ok, my planned dates are from 02/02 and 02/04.

ASSISTANT: Please wait for a moment.

USER: Sure, take your time.

ASSISTANT: There is a connecting flight 1016 of Spirit airlines, can I proceed?

USER: Yes, please.

ASSISTANT: Your booking is done.

USER: Thanks for your help.

ASSISTANT: Welcome.