You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am William Gonzalez.

ASSISTANT: William Gonzalez, how can I aid you today?

USER: I want to book a ticket from PHL to MSP to attend seminar, can you help me in booking?

ASSISTANT: Sure, I am here to help you. May I know your travel dates please?

USER: I am departing on Dec 24 and return on Dec 26.

ASSISTANT: Ok, do you have any requirements?

USER: I want to depart in morning.

ASSISTANT: Ok, hold on for a moment. Let me check the best available flight for you.

USER: Sure, take your time.

ASSISTANT: I found a flight for you with Southwest Airlines and it costs you 500. Shall I proceed to reserve a seat in this single connecting flight?

USER: Please proceed for booking.

ASSISTANT: Your ticket has been booked with 1018 flight number.

USER: Thank you for your help.

ASSISTANT: Welcome, thank you for choosing us. Have a safe flight.