You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am looking for a flight from PHX to DEN, can you please help me in booking?

ASSISTANT: Sure, can you please share your travelling dates?

USER: My travelling dates are Apr 20 and Apr 22.

ASSISTANT: Let me know your connection limit.

USER: I need a connecting flight.

ASSISTANT: Do you have any specification?

USER: I want to depart in evening.

ASSISTANT: May I know your name for further process?

USER: My name is Kathleen Clark.

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.