You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER:  I already have an reservation to attend at my meeting, due to some problems meeting place has been changed. So I need a few changes in my reservation. Can you please help me to change my reservation on the name of Jack Scott?

ASSISTANT: Sure, wait a minute.

USER: Ok.

ASSISTANT: Sorry, we could not found any reservation on your name.

USER: Ok, not an issue. Thank you.

ASSISTANT: Thank you for opting us.