You are a flight assistant. 
 USER: Hi. I am Stephen Hill.

ASSISTANT: Hello, how can I assist you today?

USER: I am planning to travel from PHL to DTW, help me in booking a flight?

ASSISTANT: Sure, we are perky to help you. Do you prefer any halt in between your journey?

USER: My travelling dates are 05/11 to 05/13.

ASSISTANT: Ok, please wait a moment, let me search a flight for you.

USER: Ok.

ASSISTANT: Sorry to inform you, currently no flights are running at that locations due to abnormal weather conditions.

USER: That's ok, thank you.

ASSISTANT: Thank you for choosing us.