You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I support you today?

USER: Please book a ticket to Austin on 10/18 as I want to visit zilker park.

ASSISTANT: Sure, we are here to book a flight ticket. May I know your name?

USER: My name is William Gonzalez.

ASSISTANT: Ok, please share your journey dates.

USER: My return date is 10/20.

ASSISTANT: Ok, kindly mention your airport codes.

USER: I am heading to Austin, AUS from San Francisco, SFO.

ASSISTANT: To proceed further, let me know your budget.

USER: I can afford upto 1000.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting, we found a flight in 1005 Southwest airline with a fare of 200. Shall I proceed?

USER: Yes, proceed.

ASSISTANT: Sure, your ticket has been booked.

USER: Thank you for the help.

ASSISTANT: Thank you for availing us.