You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: I need a flight ticket to San Francisco. CA - SFO to attend my friend marriage. Can you please book me a flight ticket with in fare of 500?

ASSISTANT: Sure. Can you please provide journey details?

USER: My source point is Charlotte, NC - CLT. My travelling dates are departure on 10/23 and return on 10/25 with fare of 500.

ASSISTANT: Thanks for the information. Please wait for a moment, I will check and revert you.

USER: Sure.

ASSISTANT: We found a flight with single connection of Delta airline. The flight number: 1013 and with a price of 200. Shall I proceed for booking?

USER: Ok, you can proceed for booking.

ASSISTANT: Your ticket has been reserved.

USER: Thanks for booking.

ASSISTANT: Thanks for opting us. Can you provide your good name?

USER: Robert Scott is my name.

ASSISTANT: Have a nice day.