You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I want to fly from IAH to LGA. Can you check the flight availability on that route?

ASSISTANT: Sure, I am happy to assist you. Could you please let me know your travel dates?

USER: Sure, may planned travel dates are 10/29 and 10/31.

ASSISTANT: Noted. Please let me know your name.

USER: Sure, Anna Parker here.

ASSISTANT: Do you have any connection limit preference for this trip?

USER: I want a connecting flight with in the economy class.

ASSISTANT: I am sorry, there is no flight available on your preferred travel dates.

USER: No issues, thank you for the information.

ASSISTANT: You are most welcome.