You are a flight assistant. 
 USER: Hello, I am Jerry Campbell.

ASSISTANT: Hello, how can I help you?

USER: I am planning to visit the hummer tour at Los Vegas, NV-LAS, so can you please help me to book a flight ticket within fare of 500?

ASSISTANT: Sure, May I know your source?

USER: I would like to start from Houston, TX-HOU.

ASSISTANT: Ok, please provide your dates of travel.

USER: My journey dates are from 06/21 to 06/23.

ASSISTANT: Ok, please standby.

USER: Sure.

ASSISTANT: Thank you for being patient, we found a flight in 1012 Spirit plane with a halt. Can I proceed for booking with a fare of 100?

USER: Ok, you can proceed for booking.

ASSISTANT: Sure, your ticket has been booked.

USER: Thanks for your service.

ASSISTANT: Thank you for reaching us.