You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: Can you help me booking a flight ticket from BOS to ORD?

ASSISTANT: Sure, please share your trip dates.

USER: I will start on 10/10 and return on 10/12.

ASSISTANT: Which class do you prefer?

USER: I am looking for a business class flight.

ASSISTANT: May I know your connection limit?

USER: I need a break in my journey.

ASSISTANT: May I know your name? Please wait for a while.

USER: I am Thomas Jackson.

ASSISTANT: Sorry Thomas Jackson, no flights are available on your route.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for choosing us.