You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Paul Mitchell.

ASSISTANT: How can I assist you today?

USER: I am planning to visit SFO to meet my friend, can you please find a flight from PHX?

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

USER: My travelling dates are Feb 15 and Feb 17.

ASSISTANT: Do you have any other specifications?

USER: My return time is afternoon.

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

USER: Please proceed.

ASSISTANT: Sorry, it will return in morning, please wait for a while.

USER: Please don't proceed.

ASSISTANT: AA airlines is providing a flight with ticket fare of 300 and it will return in afternoon only, shall I proceed for booking in this flight?

USER: Yes, please.

ASSISTANT: I have successfully booked you a ticket in flight-1027, have a safe journey.

USER: Thank you for booking.

ASSISTANT: Thank you for choosing us.