You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: This is Elizabeth Nelson, can you help me to book a flight ticket from BOS to DFW?

ASSISTANT: Sure, may I know your planned trip dates?

USER: I am travelling from Jan 22 to Jan 24.

ASSISTANT: Which flight do you prefer either connecting or direct?

USER: I prefer connecting flight.

ASSISTANT: Do you have any class preference?

USER: I am comfortable with any class.

ASSISTANT: We found a connecting flight of fare 100 with airline Delta and number is 1010. Can I reserve it?

USER: Please reserve.

ASSISTANT: Your ticket has been confirmed in economy class.

USER: Thank you.

ASSISTANT: Thank you for availing us.