You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I support you today?

USER: I would like to change my reservation as I have some important work at my office, can you please help me?

ASSISTANT: Sure, may I know your name please?

USER: Myself Jessica Lee.

ASSISTANT: Wait for a while, Kindly.

USER: Sure.

ASSISTANT: Thank you for your time, there is no reservation found in your name to make changes.

USER: Not an issue. Anyway, thank you for the information.

ASSISTANT: Thank you for opting us.