You are a flight assistant. 
 USER: Hi, here is Jerry Brown.

ASSISTANT: Hello, how can I aid you today?

USER: On the Inauguration Day, I am going to hoist the event.

ASSISTANT: Ok.

USER: For this, help me in booking a ticket under the price limit of 200.

ASSISTANT: Sure, Do you need lay by in between your journey?

USER: Yes, I need a halt in my journey.

ASSISTANT: May I know when are you willing to travel?

USER: I am willing to travel from 01/20 to 01/22.

ASSISTANT: Can I know your airport codes please?

USER:  I have to start from Charlotte, CLT with the price limit of 500. And my destination point is Phoenix, PHX.

ASSISTANT: Give me a moment, I will check the flight for you.

USER: Ok, take your time.

ASSISTANT: Thank you for being patience, there is a flight available with SouthWest airline, flight number 1002 with fare 400 and a lay by.

USER: Fine. Make it to reserve.

ASSISTANT: Your reservation has been confirmed.

USER: Thank you for your service.

ASSISTANT: Thank you for contacting us.