You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I amend you today?

USER: I am Nicholas Turner. I am going to participate in a singing competition at Philadelphia, so please book me a ticket to PHL from DTW.

ASSISTANT: Sure, Can you please let me know your travelling dates?

USER: Sure, my starting date is 05/13 and I return date is 05/15.

ASSISTANT: Do you have any specifications?

USER: Yes, I will prefer a whistle stop.

ASSISTANT: We found a flight in Delta airline of flight number 1024 matches given specifications. Shall I proceed?

USER: Yes, proceed with the booking.

ASSISTANT: Your booking has been done.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.