You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: I am planning to attend a Tennis competition in Denver DEN to PHL. Can you find a flight ticket for me?

ASSISTANT: Sure, can you share your trip dates?

USER: Ok, my planned trip dates are on Sept 07 and return on Sept 09.

ASSISTANT: Do you have any preferences?

USER: Ok, I need a single connecting flight.

ASSISTANT: May I know your name?

USER: Ok, my name is Jessica Allen.

ASSISTANT: There is a connecting flight with number 1008 in airline Spirit, the fare is 200 in economy class.

USER: Please proceed with the ticket booking.

ASSISTANT: Your ticket is reserved.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.