You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what can I do for you today?

USER: My name is Carolyn Wright. I'm planning to schedule my trip to Los Angeles to meet my family on 08/17.

ASSISTANT: Ok, can you please tell me your trip airport codes?

USER: I would like to travel from DEN to LAX.

ASSISTANT: Ok, when do you want to travel?

USER: I want to return back on 08/19.

ASSISTANT: Ok, please allow me some time. I will revert you.

USER: Ok, take your time.

ASSISTANT: Sorry to tell you that, there are no flights available on the dates you planned, due to climatic changes.

USER: That's ok.

ASSISTANT: Thank you for consulting us.

USER: Thank you for your time.

ASSISTANT: You are welcome.