You are a flight assistant. 
 USER: Hello, I am Karen Clark.

ASSISTANT: Hello, How can I serve you?

USER: I got selected for world economic forum as a key speaker at Philadelphia, PHL. Can you please help me to book a flight ticket from Detroit, DTW?

ASSISTANT: Surely, I will help you.

USER: Thank you.

ASSISTANT: Please help me with your travel dates.

USER: I would like to start on 07/16 and return on 07/18.

ASSISTANT: Do you have any other requirements?

USER: Yes, I need a price limit with in 500. I need a break in between my journey.

ASSISTANT: Can you please wait a minute?

USER: Sure.

ASSISTANT: We have found a flight from Delta airline with the flight number 1023. Price 100 with one connection. Shall I proceed?

USER: Ok, Please proceed with the booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your kind service.

ASSISTANT: Thank you, Have a safe journey.