You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: Can you please help me with booking a flight ticket from ORD to LGA?

ASSISTANT: Sure, please provide your itinerary dates.

USER: My travelling dates are from Sept 14-16.

ASSISTANT: May I know your name?

USER: Ronald Young here.

ASSISTANT: Sorry Ronald Young, no flights are available on your route.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for reaching us.