You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: I am Elizabeth Miller, I want to book a flight of San Francisco, AZ-PHX to attend a meeting. Can you book a flight for me?

ASSISTANT: Sure, I am here to help you. May I have your travelling dates?

USER: I will travel on 12/24 and return on 12/26.

ASSISTANT: Ok. Will you send me your source point?

USER: I will fly from AZ-PHX to CA-SFO.

ASSISTANT: Do you have any other any specifications?

USER: I need a connecting flight. My budget is 500.

ASSISTANT: Ok, Thanks for sharing your details. We found a airline AA with flight number 1006. Shall I proceed to book?

USER: Sure.

ASSISTANT: Your reservation is done.

USER: Thank you for booking.

ASSISTANT: Thank you for choosing us, Have a nice day.