You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: Benjamin Phillips here. Due to health issue, I want to cancel my reservation. Can you please help me for that?

ASSISTANT: Sad to hear that, I will surely help you.

USER: Ok.

ASSISTANT: Give me a minute.

USER: Ok, I will wait.

ASSISTANT: Sorry, there is no reservation found under your name.

USER: Anyway, thank you for the information.

ASSISTANT: Thank you for opting us.