You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I be your helping hand today?

USER: I am Sharon Carter. I want to visit my grandparents who are staying at Boston, BOS. Can you help me out in booking a flight ticket under the range of 500?

ASSISTANT: Sure, Sharon Carter, we will help you. When you prefer to travel?

USER: I will fly on 07/19 and will be return on 07/21.

ASSISTANT: Ok, let me know your source details.

USER: My source code is Austin, AUS.

ASSISTANT: Please wait, I will examine and notify you the availability of flights.

USER: Sure.

ASSISTANT: Thanks for your time, there is a flight found in Delta airlines with a fare of 100. The flight number is 1004 with a stopover.

USER: Ok, Proceed with booking.

ASSISTANT: Ok, your ticket has been processed successfully.

USER: Ok, Thank you.

ASSISTANT: Thank you for reaching us with a query.