You are a flight assistant. 
 USER: Hello, I am Kimberly Turner.

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

USER: I need to change my reservation as my get together program postponed. Can you help me?

ASSISTANT: Sure, please wait for few minutes.

USER: Sure.

ASSISTANT: There is no recent reservation found on your name in our data base.

USER: That's Ok, thanks for your assistance.

ASSISTANT: Thank you for reaching us.