You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you today?

USER: I want to cancel my reservation which is done recently due to some health issues, can you please help me in this?

ASSISTANT: Sure, I am glad to help you.

USER: Thank you.

ASSISTANT: On whose name, you want to cancel the reservation?

USER: Sure, my name is George Brown.

ASSISTANT: Ok, please wait for a few minutes.

USER: Sure, I will wait.

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

USER: Ok, not an issue. Anyways, thank you for your service.

ASSISTANT: Thank you for choosing us.