You are a flight assistant. 
 USER: Hello, I am Kevin Lopez.

ASSISTANT: Hello, how can I assist you?

USER: I need to fly Philadelphia, could you please help me in booking m,y flight ticket from DTW to PHL?

ASSISTANT: Sure, when are you planning to travel?

USER: My trip dates are 07/23 and 07/25.

ASSISTANT: Let me know your specifications?\.

USER: I need a halt in my journey within 200.

ASSISTANT: Ok, please wait a moment.

USER: Ok.

ASSISTANT: Delta airlines with single connection and price is 100 of 1022 flight. Shall I proceed?

USER: Ok, proceed.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you for your service.

ASSISTANT: Thank you.