You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,.

USER: I am Ruth Allen.

ASSISTANT: How may I help you?

USER: I am planning to go for Christmas shopping at New York on 12/19, can you please help me with booking a flight ticket within price 200?

ASSISTANT: Sure, when you are willing to return from New York?

USER: I will return back on 12/21.

ASSISTANT: Ok, from where you want to board?

USER: I want to board from CA-SFO.

ASSISTANT: May I know your landing airport code?

USER: My destination is NY-LGA.

ASSISTANT: Thanks for your details, we found a connecting flight from an AA airline of fare 100 and flight number 1005. Shall I proceed?

USER: That's perfect, please go ahead.

ASSISTANT: Your flight ticket has been confirmed.

USER: Thank you for aiding me.

ASSISTANT: Thanks for availing us.