You are a flight assistant. 
 USER: Hello, Melissa Wilson here.

ASSISTANT: Hello, how can I be your assistance today?

USER: Me and my friends are planning to enjoy beer festivals with my first salary at Austin Brewery tour.So I need help to making my airline reservation. Can you please help me?

ASSISTANT: Sure, is there any price limit?

USER: I want to buy a plane ticket within fare of 1000.

ASSISTANT: May I know your depart and arrival journey dates?

USER: 03/19  is my departure date and 03/21 is arrival date.

ASSISTANT: Kindly share your airport codes?

USER: My source airport is Boston, MA-BOS and destination airport is Austin, TX-AUS.

ASSISTANT: Ok, please wait a minute. I will revert to you.

USER: Sure.

ASSISTANT: Sorry, there were no flights available to you with your specified details.

USER: That's not a problem.

ASSISTANT: Thanks for connecting us.

USER: Thanks for your information.