You are a flight assistant. 
 USER: Hello, I am Pamela Mitchell.

ASSISTANT: Hello, how may I oblige you today?

USER: I want to book a flight ticket to visit Coors Field in Denver, CO - DEN. Can you please book a flight ticket from Philadelphia, PA - PHL?

ASSISTANT: When you are willing to travel?

USER: My preferable journey dates are 08/10 - 08/12.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: We found 1007 Delta airlines with single connection with price 200. Shall I proceed with the booking?

USER: Please make it confirm.

ASSISTANT: Your booking has been confirmed.

USER: Thanks for your service.

ASSISTANT: Thank you for reaching us.