You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: Can you please help me to book a flight from DEN to PHL?

ASSISTANT: Sure, we are willing to help you.

USER: Thank you.

ASSISTANT: Please provide me your journey dates that you prefer to travel.

USER: My travel dates are Nov 12th and 14th.

ASSISTANT: Ok, do you have any preference in connection?

USER: I prefer a connecting flight.

ASSISTANT: Ok, let me check the availability of flights.

USER: Sure.

ASSISTANT: There is a connecting flight available from United airlines at a price of 200  in economy class. Shall I proceed with the booking?

USER: Please proceed with the booking.

ASSISTANT: Please share me your name to proceed further.

USER: My name is Benjamin King.

ASSISTANT: Your booking has been done in flight number 1002.

USER: Thank you for your help.

ASSISTANT: Thank you for contacting us.