You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: I have planned to surprise my parents on their anniversary at Phoenix, so I need you to book a flight ticket on 12/03. Can you help me with booking a ticket to PHX?

ASSISTANT: Sure, please let me know your origin.

USER: Sure, I am from SEA.

ASSISTANT: Can I have your return date?

USER: Sure, it's 12/05.

ASSISTANT: May I know your name?

USER: I am Helen Turner.

ASSISTANT: We found a connecting flight with price 100, flight number is 1007. Shall I make a move?

USER: Please book it.

ASSISTANT: Your ticket has been confirmed with Frontier airlines.

USER: Thank you for your assistance.

ASSISTANT: Thanks for choosing us.