You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Rachel Campbell here.

ASSISTANT: Yes, Rachel Campbell how may I assist you?

USER: I would like to go for a business trip on 01/19 to 01/21.

ASSISTANT: Ok, may I know your source and destination?

USER: Sure, It's from ATL to LAX. I have a price limit of 200 with 1 connection.

ASSISTANT: Ok, there is a flight for you with flight number 1015.

USER: That's great.

ASSISTANT: Ok, should I proceed?

USER: Please confirm the ticket for me.

ASSISTANT: Ok, your ticket has been booked.

USER: Thank you for your great service.

ASSISTANT: Thank you for choosing us.