You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you for the day?

USER: Please help me to book a flight ticket from LGA to SEA.

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

USER: My travelling dates are from Nov, 25 to Nov, 27.

ASSISTANT: Can I know your name please?

USER: I am Gary Johnson.

ASSISTANT: May I know your connection limit?

USER: I need a single connecting flight.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Sorry for the inconvenience,  there are no flights found on this route as per your travel dates.

USER: That's ok, thank you for information.

ASSISTANT: Most welcome, thank you for reaching us.