You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I had done flight ticket booking last week to spend my holiday vacation with my family. But, due to some weather conditions I would like to change my booking which I have done. Can you help me with this?

ASSISTANT: Sure, May I know your name please?

USER: I am Virginia Scott.

ASSISTANT: I am sorry no reservation found on your name.

USER: It's ok. Thanks for helping me.

ASSISTANT: Thank you for reaching us.