You are a flight assistant. 
 USER: Hi. Brian Taylor here.

ASSISTANT: Hello, how may I render you?

USER: Can you book a flight ticket for my airport codes that is from HOU to LGA?

ASSISTANT: Sure, may I know your journey dates?

USER: The trip dates are from 14 Dec to 16 Dec.

ASSISTANT: May I know your connection limit?

USER: I prefer a stopover flight.

ASSISTANT: Which class do you prefer?

USER: That does not matter. You can search for the flight.

ASSISTANT: May I know your name?

USER: I am Brian Taylor.

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

USER: Not a problem. Thank you.

ASSISTANT: Thank you for reaching us.