You are a flight assistant. 
 USER: Hello,. I am Jessica Lee.

ASSISTANT: Hello, what can I do for you today?

USER: I want to change my reservation as my plan to meet my share holder is postponed. Can you help me with that?

ASSISTANT: Sure, please wait while I check your previous reservation.

USER: Sure.

ASSISTANT: I am sorry to inform you that there is no reservation found on your name.

USER: Ok, no issues.

ASSISTANT: Thank you.

USER: Thanks for the information.