You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Stephanie Martinez. I want to celebrate my friend birthday at Houston. Can you please help me to book a flight ticket from PHX - IAH?

ASSISTANT: Sure, please share your journey dates?

USER: My journey dates are 12/19 to 12/21.

ASSISTANT: Do you need any other requirements?

USER: My budget limit is 500.

ASSISTANT: We found a flight in JetBlue airlines, flight number is 1009 with one connection and price is 100.

USER: Please proceed to book.

ASSISTANT: Ok, your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for choosing us.