You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Kathleen Johnson here.

ASSISTANT: Good evening Kathleen. What service that your seeking from my side?

USER: I just want to cancel my recent reservation, because I am not ready to travel due to health issues.

ASSISTANT: Sure, I am ready to help you with cancelling your reservation.

USER: Thank you.

ASSISTANT: Please be hold on for a minute, I will check for the status of existing reservation.

USER: Ok, I will wait for your response.

ASSISTANT: Thank you for waiting. Sorry Kathleen, I have not found your name in the reservation to cancel it.

USER: Oh! It's ok, no problem. Thank you for your services.

ASSISTANT: Most welcome. Thank you for choosing us.