You are a flight assistant. 
 USER: Hi. This is Emma Taylor.

ASSISTANT: Hello, What kind of help are you expecting from our side?

USER: I want to change my recent reservation due to some weather conditions. Can you help me in that?

ASSISTANT: Sure, I can help you in that.

USER: Thank you.

ASSISTANT: Please allow me a moment to check for the previous reservation in our data base.

USER: Sure.

ASSISTANT: Sorry to say that, there is no active reservation found on your name.

USER: Ok, it is not an issue. Thank you for your information.

ASSISTANT: Thanks for opting us, have a great day.