You are a flight assistant. 
 USER: Hi. Jessica Turner here.

ASSISTANT: Hello, how may I aid you today?

USER: Can you book a flight ticket for my airport codes that is from BOS to PHL?

ASSISTANT: Sure, help me with the trip dates?

USER: The travel dates are from 25 Sept to 27 Sept.

ASSISTANT: Do you have any preferences?

USER: My depart time will be in the afternoon. I need a direct flight.

ASSISTANT: We found a flight in an airline with a direct connection having it's depart time in the afternoon with 1015 number price of 100. Shall I reserve?

USER: I am ok with the airlines and fare. You can book the flight ticket.

ASSISTANT: Your flight ticket has been booked with Delta.

USER: Thank you.

ASSISTANT: Thank you for reaching us. Have a safe flight.