You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Angela Walker. As I am travel freak, I want to explore Dallas Fort & Worth. Can you book a ticket to my destination point DFW.

ASSISTANT: Ok, please share your source point?

USER: Source is Las Vegas, LAS.

ASSISTANT: May I know your travelling dates?

USER: Travel dates are 07/15 and 07/17.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, we found a flight with fare of 200 in Delta airline. Shall I proceed for booking with 1023 flight number?

USER: Proceed for booking.

ASSISTANT: Your booking has been done.

USER: Thank you for booking.

ASSISTANT: Thanks for availing us.