You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I am looking to book a flight ticket from PHL to DEN. Can you help me for that?

ASSISTANT: Sure, On which dates would you like me to book a flight ticket for you?

USER: My travelling dates are Dec 22 and Dec 24.

ASSISTANT: On what name, do I need to reserve your ticket?

USER: My name is Matthew Hall.

ASSISTANT: Let me know your connection limit?

USER: I prefer to book a direct flight in my journey.

ASSISTANT: Do you have any other requirements?

USER: No.

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

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for choosing us.