You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I benefit you?

USER: Christine Wright here. Can you make my reservation from PHL to DTW?

ASSISTANT: Sure ,please help me with your trip dates.

USER: My trip dates are from 10/08 to 10/10.

ASSISTANT: Please give me a minute to check.

USER: Sure.

ASSISTANT: Sorry, no flights are available on your route.

USER: Not a problem. Anyway, thank you for searching.

ASSISTANT: You are most welcome.