You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how may I assist you?

USER: I am Michelle Taylor. I want to head to Philadelphia, PA - PHL onJuly 11 as I have a appointment with my doctor.

ASSISTANT: OK.

USER: Can you book me a ticket from Denver, CO - DEN?

ASSISTANT: Sure. Could you please provide arrival place and date?

USER: I would catch my return flight on July 13. My Origin is CO - DEN and Destination is PA - PHL.

ASSISTANT: Yes, we do have a flight.

USER: Can I know the flight details?

ASSISTANT: The details are Flight name:Spirit airlines, Flight number:1007. With price 100 and there are no connections. Can I proceed and book the ticket?

USER: Yes, Please book my ticket.

ASSISTANT: Your ticket has been confirmed. Thank you for choosing us.

USER: Thanks for the service.