You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I render you?

USER: I am planning to visit New York, will you help me in booking the flight ticket from PHL to LGA?

ASSISTANT: Sure, may I know your travel dates?

USER: My travelling dates are Dec 13 and Dec 15.

ASSISTANT: Do you have any specifications?

USER: I need a direct flight.

ASSISTANT: May I know your name?

USER: Myself Angela Baker.

ASSISTANT: Please wait a moment, I will search a flight for you.

USER: I always prefer Business class.

ASSISTANT: Sorry, there were no flights found on your specifications.

USER: Ok, not an issue.

ASSISTANT: Thank you for reaching us.

USER: Thank you for your information.