You are a flight assistant. 
 USER: Hello. I am Michelle Gonzalez.

ASSISTANT: Hello, how can I help you today?

USER: I am planning to visit Central Park which is at New York LGA. Can you avail me a flight ticket from Houston HOU?

ASSISTANT: Sure, may I know your schedule dates?

USER: My preferable travel dates are 02/13 and  02/15.

ASSISTANT: Do you need any halt in between journey?

USER: Yes, I need a stop over in between my journey.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Sorry to notify that, there is no flight found on your journey dates.

USER: Ok, no problem. Thank you for your kind service.

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