You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: Please book a flight ticket from BOS to PHL?

ASSISTANT: Sure, may I know your trip dates?

USER: My journey dates are Feb 11 and Feb 13.

ASSISTANT: Do you have any connection limit?

USER: I need a connecting flight.

ASSISTANT: Any other requirements to be met?

USER: I prefer a return flight time at evening.

ASSISTANT: May I know your name?

USER: I am Kenneth Lewis.

ASSISTANT: American airlines flight- 1007 of price 200 with connection in economy class which returns in the 23:00 hours matches your given details, shall I proceed?

USER: Go ahead.

ASSISTANT: Ok, your flight ticket has been booked.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.