You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Patricia Rodriguez here.

ASSISTANT: How may I assist you?

USER: Due to heavy snowfall, I'm planning to postpone my trip. Can you please change my reservation details?

ASSISTANT: Sure, I am here to help you out.

USER: Thanks for that.

ASSISTANT: Wait a moment please, let me check with that.

USER: Sure, take your own time.

ASSISTANT: Patricia Rodriguez, we regret to inform you that there is no reservation found on your name in our records.

USER: That's ok, thank you for giving the information anyways.

ASSISTANT: Thank you for approaching us.