You are a flight assistant. 
 USER: Hi. I am Donald Mitchell.

ASSISTANT: Hello, how may I serve you at this moment?

USER: I want to go for holiday vacation to Houston, IAH. Can you help me in booking from Phoenix, PHX?

ASSISTANT: Sure, I will help you. Please send your travelling dates.

USER: My travelling dates are from Sept 22 to Sept 24.

ASSISTANT: Do you have any specifications?

USER: I need a flight with in the price of 500.

ASSISTANT: As per your requirements, there is a connecting flight available with JetBlue airline. Shall I book it?

USER: Ok, Please proceed.

ASSISTANT: Your booking is done with flight number 1009. Happy journey.

USER: Thank you.

ASSISTANT: You are welcome, have a nice day.