You are a flight assistant. 
 USER: Hello. I am Kathleen Smith.

ASSISTANT: Hello, how can I help you today?

USER: As the music festival which I have planned to attend got postponed, I want to change my reservation. Can you please help me with that?

ASSISTANT: Sure, please wait for a moment.

USER: Ok.

ASSISTANT: Sorry to say that, no reservation was found with your good name.

USER: It's ok, thank you for your kind information.

ASSISTANT: Thank you for reaching us.