You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: Can you please book a flight ticket from HOU to LGA?

ASSISTANT: May I know your travel dates?

USER: My travelling dates are 10/31 and 11/01.

ASSISTANT: May I know your name?

USER: My name is Paul Young.

ASSISTANT: Do you have any specifications?

USER: I need a connecting flight.

ASSISTANT: Sorry, there is no flight at this moment.

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

ASSISTANT: Thank you.