You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Can you please help me with booking flight ticket from EWR to LGA?

ASSISTANT: Sure, kindly share your travel dates.

USER: Sure, my travelling dates are Sept 14 and Sept 16.

ASSISTANT: Do you have any connection limit?

USER: Yes, I need a connecting flight.

ASSISTANT: Is there any other specifications?

USER: I want a ticket in economy class.

ASSISTANT: May I know your name?

USER: My name is Alexander Walker.

ASSISTANT: Sorry to say, no flights found with your requirement.

USER: That's fine, thank you for the response.

ASSISTANT: Thanks for reaching us.