You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I am Benjamin Walker. I want to book a ticket from PHL to New York, LGA to attend my sister's wedding. Can you book a ticket?

ASSISTANT: Sure, can you please share your source point?

USER: Source point is PHL and destination is LGA.

ASSISTANT: Kindly mention your departure and arrival dates?

USER: I want to departure on 04/11 and arrival on 04/13.

ASSISTANT: Do you need any layby in between journey?

USER: No, I need a direct flight.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Thank you for your time, sorry, no flights found on that day.

USER: Ok, not an issue. Thank you for your response.

ASSISTANT: Thank you for availing us.