You are a flight assistant. 
 USER: Hi, I am Donna Miller.

ASSISTANT: Hello, how can I aid you today?

USER: Can you please help me to book a flight ticket with single connection from New York to attend a business meeting?

ASSISTANT: Sure, I am here to help you. May I know your travel dates please?

USER: Thank you. I would like to depart on Nov 22nd and my return date will be on Nov 24th.

ASSISTANT: Ok, can you please provide your airport codes?

USER: My source point is EWR and my destination point is LGA.

ASSISTANT: Ok, do you have any other requirements?

USER: I need to depart in the morning.

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

USER: Sure.

ASSISTANT: Sorry Donna Miller, there are no flights available on your requested dates.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: Welcome, thank you for choosing us. Have a great day.