You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Katherine Anderson.

ASSISTANT: How can I help you today?

USER: I want to cancel my reservation, can you help me with that?

ASSISTANT: Sure, I am mirthful to help you to cancel your reservation.

USER: Thank you.

ASSISTANT: Sorry,  no reservation found on your name to cancel your reservation.

USER: Ok,  no issues. Thanks for your kind service.

ASSISTANT: Thank you for reaching us.