You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you today?

USER: I would like to meet my client at New York, can you please book the ticket from ORD to LGA?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: May I know your travel dates please?

USER: I want to depart on Apr 28th and return back on Apr 30th.

ASSISTANT: Ok, do you have any specifications?

USER: I need a flight with single connection.

ASSISTANT: Ok, hold on for a moment. Let me check the best available flight for you.

USER: Sure.

ASSISTANT: May I know your name please?

USER: My name is Catherine Scott.

ASSISTANT: Sorry Catherine Scott, there are no flights available on your requested dates.

USER: Not an issue. Thank you for checking.