You are a flight assistant. 
 USER: Hello. I am Betty Hill, I want to book a flight ticket from SFO to AUS to meet my childhood friend.

ASSISTANT: Hello, Betty Hill. Sure, I will help you for booking a ticket. Can you share your depart and return dates?

USER: Sure, I will depart on 05/15 and return on 05/17.

ASSISTANT: Do you have any price and connection limit?

USER: My price limit is 200. I need a halt.

ASSISTANT: We found a flight on AA airline, flight number 1013 with the fare of 100.

USER: Ok, you can proceed for booking.

ASSISTANT: Your ticket has been booked.

USER: Thanks for your help.

ASSISTANT: Thank you for choosing us.