You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you at this moment?

USER: I want to attend a Seminar in PHL. Can you please help me for booking the flight ticket from LGA?

ASSISTANT: Sure, I am happy to help you with that. Can I have your travel dates please?

USER: My travelling dates are July 29 and July 31.

ASSISTANT: Ok, please let me know your preferable timings of your journey.

USER: I want to depart in morning.

ASSISTANT: Do you have any other specifications?

USER: I prefer single connecting flight.

ASSISTANT: Can I have your good name please?

USER: My name is Rachel Smith.

ASSISTANT: Sorry to inform you that no flight is available to you on your dates.

USER: Anyway, thanks for the information.

ASSISTANT: Thank you for choosing us.