You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am David Hall.

ASSISTANT: How can I assist you today?

USER: I would like to attend my father birthday at New York, can you please help me to book a flight ticket from PHX to LGA?

ASSISTANT: Sure, I can help you with that. May I know your planned  travel dates please?

USER: My desired travel dates are 03/27 and 03/29.

ASSISTANT: Ok, please wait for a while.

USER: OK, take your own time.

ASSISTANT: Hawaiian airlines is having a flight on that route with ticket fare of 100, shall I proceed for booking?

USER: Ok, please proceed.

ASSISTANT: I have successfully booked your ticket with flight-1017, have a safe journey.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.

USER: You are welcome.