You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello.

USER: I am Kevin Martin.

ASSISTANT: How can I assist 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, will you please give me a moment?

USER: Sure.

ASSISTANT: Thanks for waiting, there is no reservation found under your name.

USER: Ok, no issues. Thanks for the information.

ASSISTANT: Welcome, have a great day.