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 BOS to JFK?

ASSISTANT: Sure, please mention your planned journey dates?

USER: I will fly on Sept 22 and recur on Sept 24.

ASSISTANT: Do you want direct flight or connecting flight?

USER: I need a connecting flight.

ASSISTANT: Please mention your class preference?

USER: I want to travel in economy class.

ASSISTANT: Is there any preference related to airline?

USER: I want to fly in normal cost airline.

ASSISTANT: Do you have any other requirement?

USER: I prefer to return in the evening time.

ASSISTANT: May I know your good name?

USER: I am Donald Mitchell.

ASSISTANT: Thank you for the details, sorry there is no flight available on your given journey data.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for reaching us.