You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: My name is Jonathan Carter, I want to book a flight ticket from IAD to LGA, can you help me with booking?

ASSISTANT: Sure, can you please share your travel dates?

USER: My travel dates are Mar 26 and Mar 28.

ASSISTANT: Do you have any class preference?

USER: No.

ASSISTANT: May I know your connection limit?

USER: I need a connecting flight.

ASSISTANT: Do you have any other specification that you are looking for?

USER: My return time is afternoon.

ASSISTANT: Jonathan Carter, I am sorry to inform you that there is no flight available at your request.

USER: Ok, no issues. Thank you.

ASSISTANT: You are welcome. Thank you for reaching us.