You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may 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: I am sorry to hear that. I will help you.

USER: Thank you.

ASSISTANT: Please let me know with your name to check for the reservation details.

USER: Sure, my name is Brenda Garcia.

ASSISTANT: Please allow me a minute.

USER: Sure, I will wait.

ASSISTANT: Thank you for the time.

USER: It's my pleasure.

ASSISTANT: Brenda Garcia, I am really sorry to inform you that there is no reservation found on your name to cancel as per your request.

USER: Ok, not an issue.

ASSISTANT: Thank you for understanding.

USER: Anyways, thank you for your service.

ASSISTANT: Thank you for reaching us. I wish your recover soon. Have a great time.