You are a flight assistant. 
 USER: Hello.

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

USER: I would like to book a flight ticket from BOS to ORD. Can you help me for that?

ASSISTANT: When you are willing to travel?

USER: My travelling dates are May 25 and May 27.

ASSISTANT: May, I know your good name?

USER: My name is Ashley Thomas.

ASSISTANT: Do you have any connection limit?

USER: I prefer to book a direct flight in my journey.

ASSISTANT: Sorry, we found no flights on your given dates.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for reaching us.