You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: Myself Karen Wright. For some issues I want to change my reservation, can you please help me?

ASSISTANT: Sure, give me  a minute.

USER: Ok.

ASSISTANT: Sorry, there is no reservation found under your name.

USER: It's ok.

ASSISTANT: Thank you for reaching us.

USER: Thank you for the information.