You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I render you at this moment?

USER: I am Deborah Roberts. I am looking for a flight from LGA to HOU, can you help me out?

ASSISTANT: Sure, I will help you. Please send your travelling dates.

USER: My trip dates are from Dec 19th till Dec 21st.

ASSISTANT: Can I have a moment please? I will check the availability. In meanwhile you can mention the requirements you need.

USER: I need a flight with 1 stop over.

ASSISTANT: Sorry, there is no flights available on your route with your given dates.

USER: That's ok, not an issue. Thank you for your information.

ASSISTANT: You are welcome, have a nice day.