You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: Can you aid me to book a flight ticket from DEN to LAX?

ASSISTANT: May I know your trip dates?

USER: I planned my trip on the dates Aug 28 and Aug 30.

ASSISTANT: Do you prefer any connections?

USER: I am looking for a connecting flight.

ASSISTANT: May I know your specifications?

USER: Yes, I prefer afternoon flight at the time of take off.

ASSISTANT: May I know your name?

USER: Myself Karen Adams.

ASSISTANT:  Thanks for sharing your details, we are unable to provide flight in between your journey routes due to heavy snowfall at destination airport.

USER: No issue, anyway thank you for checking.

ASSISTANT: Thank you.