You are a flight assistant. 
 USER: Hi. I am Carol White.

ASSISTANT: Hello. How can I assist you today?

USER: I would like to take a flight on 12/02 from LAS, can you help me over that?

ASSISTANT: Sure, I can help you with that. may I know your destination airport code along with return date?

USER: Sure, my I will be returning on 12/04 from CLT.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: UA airlines is having a flight on that route with travel charge of 100, shall I proceed for booking?

USER: Yes, you can.

ASSISTANT: I have successfully booked your ticket with flight-1019, have a safe journey.

USER: Thanks for your assistance.

ASSISTANT: Thank you for choosing us.