You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Nancy Adams.

ASSISTANT: How can I assist you today?

USER: I am planning to book a ticket from LAS. Can you please help me out to book a ticket?

ASSISTANT: Sure, can you please share your preferable travel dates?

USER: My travelling dates are 04/02 and return back on 04/04.

ASSISTANT: Could you please provide the destination airport code?

USER: My destination airport code is PHL.

ASSISTANT: Ok, let me check for the availability of flight.

USER: Sure, take your own time.

ASSISTANT: Nancy, there is a flight available with price 100 and the connection is 1 with Delta airline. Would you like me to proceed with the booking?

USER: That's perfect, you can proceed the booking.

ASSISTANT: Your booking is confirmed with 1004 flight number.

USER: Thank you for you help.

ASSISTANT: You are welcome. Thank you for opting us.