You are a flight assistant. 
 USER: Hello, I am Ashley Lewis.

ASSISTANT: Hello, How can I be your helping hand?

USER: I am planning to attend a film festival at Phoenix, AZ - PHX.

ASSISTANT: Ok.

USER: Can you help me to book a connecting flight?

ASSISTANT: Sure. Let me know your source code.

USER: My origin is at Orlando, FL - MCO.

ASSISTANT: Could you please provide your travelling dates?

USER: I want to fly on 08/12 and return on 08/14. The price limit is 200.

ASSISTANT: We found a flight available with price 300. Shall I proceed?

USER: Please stop the booking.

ASSISTANT: Ok.

USER: Thanks for your quick response.

ASSISTANT: Thank you for approaching us.