You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I want to change my reservation due to bad weather conditions, can you please help me out with that?

ASSISTANT: Sure, I will you with that.

USER: Thank you.

ASSISTANT: May I know your good name please?

USER: Sure, I have reserved it on the name of Katherine Taylor.

ASSISTANT: Katherine Taylor, I will check your reservation status please give me a moment.

USER: Ok, take your time.

ASSISTANT: Sorry,Katherine Taylor no reservation found in our database.

USER: Oh! May be I have done a wrong booking. Anyway, thank you for the information.

ASSISTANT: Thank you, have a good day.