You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I need to book a flight ticket from ATL to LGA, Can you please help me for booking?

ASSISTANT: Sure, let me know your travel dates please?

USER: I would like to travel on 10/24 to return on 10/26.

ASSISTANT: May I know your connection limit?

USER: I am comfortable with any connections.

ASSISTANT: Do you need any other preference?

USER: No.

ASSISTANT: Can I know your name please?

USER: Donald Campbell here.

ASSISTANT: Sorry to inform you that there are no flight services available on your given dates.

USER: Ok, no problem. Thanks for your information.

ASSISTANT: Thanks for contacting us.