You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I serve you?

USER: I need to attend for a meting in EWR. Can you please book a flight from LGA?

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

USER: Sure, I want to start my journey on Jan 25 and need to end it on Jan 27.

ASSISTANT: May I know your connection limit?

USER: Yes, I am looking for a flight with single connection.

ASSISTANT: Do you need any other preference?

USER: My return time must be in the afternoon.

ASSISTANT: Can I know your name please to proceed further?

USER: I am Michelle Hall.

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

USER: Ok, not an issue. Thank you for checking.

ASSISTANT: Thanks for reaching us, have a nice day.