You are a flight assistant. 
 USER: Hello. I am Helen Roberts.

ASSISTANT: Hello. How may I assist you Helen Roberts?

USER: I have to attend my sister's wedding, could you please help me with booking a flight ticket?

ASSISTANT: Sure, I can help you. Please provide your travelling dates to go.

USER: I would like to take off on 01/30 and return on 02/01.

ASSISTANT: Ok, can you share your locations?

USER: My nearest source airport code is PHX and destination airport code is CLT.

ASSISTANT: Thanks for your details. There is a flight-1008 on Southwest airline. Shall I book it?

USER: Please proceed with the booking if the ticket fare is less than 200.

ASSISTANT: Ok, your ticket has been done with price 100.

USER: Thank you for your service.

ASSISTANT: Thanks for reaching us.