You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I'm Kenneth Miller.

ASSISTANT: How may I guide you?

USER: Due to sudden changes in my schedule, I want to cancel my recent reservation. can you please help me?

ASSISTANT: Sure, please hold on for a moment.

USER: Sure.

ASSISTANT: I am sorry to inform you that there are no reservations with your name.

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

ASSISTANT: Thank you, have a good day.