You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you for the day?

USER: I want to book a flight ticket from DFW to LGA for attending a event.

ASSISTANT: When you are willing to travel?

USER: Could you please help me with booking a flight ticket?

ASSISTANT: Do you have any connection limit?

USER: I want to travel on dates June 23 and June 25.

ASSISTANT: May, I know your good name?

USER: I prefer to travel in a direct flight. I am Susan Mitchell.

ASSISTANT: Sorry, we found no flights on your given dates. Thank you for reaching us.