You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I provide assistance to you?

USER: I would like to change my recent reservation, will you help me with that?

ASSISTANT: Sure, may I know your name please?

USER: Myself Katherine Young.

ASSISTANT: Wait a moment.

USER: Ok, I will wait.

ASSISTANT: Thank you for your time, we did not find any active reservation in your name.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: Thank you for your approach.