You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Shirley Johnson. I am looking for a flight from ORD to PHL, can you help me in booking?

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

USER: Sure, my planned travel dates are Oct 19 and Oct 21.

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

USER: Ok, I am looking for a connecting flight.

ASSISTANT: I found a flight for you with Delta Airlines and it costs you 100. Shall I proceed?

USER: That's fine, please proceed in booking.

ASSISTANT: Your ticket has been booked with 1006 flight number.

USER: Thank you for your service.

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