You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: Myself Cynthia Lee. I am planning this weekend to visit New York to promote my business. Can you please help me in reserving the ticket from IAD to LGA?

ASSISTANT: Sure, I am here to help you out. Can you please share your travel dates?

USER: I am planning my trip on Sept 04, and again I will return back on Sept 06.

ASSISTANT: Do you have any specific departure and return time?

USER: My depart time is morning.

ASSISTANT: May I know your connection limit please?

USER: I am flexible with single connection.

ASSISTANT: Which class do you prefer for your journey?

USER: My class preference is business.

ASSISTANT: Can you please share your airline preference?

USER: I am comfort with any airlines.

ASSISTANT: Ok, please be on hold. Let me check with the flight availability.

USER: Sure.

ASSISTANT: Sorry, there are no flights in this route as per your travelling details.

USER: Not a big problem, anyhow thank you very much for your service.

ASSISTANT: Thank you for approaching us.

USER: You are welcome.