You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, Good Afternoon.

USER: I am Brandon Brown.

ASSISTANT: Ok Brown, how can I aid you?

USER: I am unable to travel right now due to health issues, so can you help me for cancelling my recent reservation?

ASSISTANT: Yes, I can help you.

USER: Thank you.

ASSISTANT: Please wait a minute while I am  checking the status of your reservation.

USER: Ok, I will wait for your response.

ASSISTANT: Sorry to inform you that, there is no reservation found with your name to cancel.

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

ASSISTANT: Thank you for consulting us. Have a nice day Brown.