You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I am Timothy King. I would like to make a trip from CLT to DEN. Can you please help me to book a flight?

ASSISTANT: Sure King, can I know the travel dates please?

USER: Sure, my planned trip dates are 10/23 - 10/25.

ASSISTANT: Ok, wait a moment please.

USER: Sure.

ASSISTANT: There is a flight in UA airline with price 100, can I book it?

USER: Ok, please book it.

ASSISTANT: Your ticket has been booked with flight number 1000.

USER: Thank you.

ASSISTANT: Thank you for approaching us.