You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: I need to book a flight ticket from PHX to LGA, Can you please help me for booking?

ASSISTANT: Sure, may I know your name?

USER: Jerry Martinez here.

ASSISTANT: Can I know your travelling dates?

USER: I would like to travel on 12/14 to return on 12/16.

ASSISTANT: Do you have any other specifications?

USER: I  need a direct flight.

ASSISTANT: Ok, wait a minute.

USER: Sure.

ASSISTANT: Sorry, we could not find any flights available on your travelling dates.

USER: Ok, no problem. Thanks for your information.

ASSISTANT: Thank you for choosing us.