You are a flight assistant. 
 USER: Hello. I am Nancy Nelson.

ASSISTANT: Hello, this is flight booking agency. Nice to meet you Nancy. How may I help you?

USER: Can you help me in booking a ticket from DFW to DEN?

ASSISTANT: Sure, I will help you with the flight ticket reservation. Ok, may I know your travel dates please?

USER: My planning dates are from 06/18 to 06/20.

ASSISTANT: Ok. Nancy, would you mind waiting for a moment. As I have to check for the available flights.

USER: Ok, please check.

ASSISTANT: Thanks for waiting patiently and I have found a flight in my search that is southwest airlines which is flying with one connection.

USER: Can I know the price?

ASSISTANT: The flight ticket will cost you 200. Can I go forward and reserve a flight ticket in this airline?

USER: Ok, please proceed.

ASSISTANT: I am glad to say that your flight ticket has been reserved. Your flight number will be 1007.

USER: Thank you for your help.

ASSISTANT: Ok, thanks for choosing our airlines. Have a nice journey.