You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello,.

USER: I am Katherine Clark.

ASSISTANT: How may I render you now?

USER: Please cancel my recent reservation.

ASSISTANT: Sure, we are here to assist you.

USER: Thank you.

ASSISTANT: Please wait a moment.

USER: Ok.

ASSISTANT: Thanks for your time. Sorry, we did not find any reservation in your name.

USER: Thanks for your response.

ASSISTANT: Thanks for your approach. Have a good day.