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

ASSISTANT: Hello, how may I serve you today?

USER: Due to some health issue I want to change my existing reservation, can you please help me with that?

ASSISTANT: Sure, I am happy to help you for that. Ok, please wait I will be back.

USER: Ok.

ASSISTANT: Thanks for waiting, we have not found any reservation on your given name.

USER: Thanks for your information.

ASSISTANT: Thank you for connecting with us.

USER: Thank you.