You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: Can you please reserve me a flight ticket from ORD to IAD?

ASSISTANT: Sure, may I know your travelling dates?

USER: Sure, my travel dates are from Nov 15 to Nov 17.

ASSISTANT: On which name shall I reserve flight ticket?

USER: Please book the flight under the name Lisa Scott.

ASSISTANT: Do you need any connecting flight?

USER: Yes, I need a break in between my journey.

ASSISTANT: Any specifications needed?

USER: I would prefer business class for my trip.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Sorry, no flights are available on your journey dates.

USER: That's ok, no problem. Thank you for the information.

ASSISTANT: Thank you for reaching our service.