You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you at this moment?

USER: Myself Cynthia King. I want to book a flight ticket from DTW to PHL. Can you help me in that?

ASSISTANT: Sure, I will help you. Please send your travelling dates.

USER: My travel dates are June 18 to June 20.

ASSISTANT: Do you have any preferences?

USER: I need a connecting flight.

ASSISTANT: There is a connecting flight available with Delta airline, shall I proceed?

USER: You can proceed.

ASSISTANT: Your booking is done with flight number 1019. Happy journey.

USER: Thank you for booking.

ASSISTANT: You are welcome, have a nice day.