You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: Can you please schedule my holiday trip from ATL to IAH?

ASSISTANT: Sure, may I know your trip dates?

USER: My trip dates are from May 19th to May 21st.

ASSISTANT: May I know your connection limit?

USER: I want a maximum number of one connection in between my journey.

ASSISTANT: Do you have any other specifications?

USER: Yes, I want to return in the afternoon.

ASSISTANT: May I know your name?

USER: I am Brian Phillips.

ASSISTANT: Sorry Brian Phillips, no flights are available on your route.

USER: Ok, no issues. Thank you for your information.

ASSISTANT: Thank you for contacting us.