You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: I need to book flight ticket from HOU to LGA.

ASSISTANT: Sure, I can help you with that. May I know your planned travel dates please?

USER: My travel dates are 02/19 and 02/21.

ASSISTANT: Can I have your good name please?

USER: John Young is my name.

ASSISTANT: Do you have any other specifications?

USER: I need a pause in my journey.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry to inform you that there are no flights available for you on those dates.

USER: Thank you for the information.

ASSISTANT: Thank you for choosing us.