You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I want to cancel my flight ticket reservation done my father name due to health, can you help me?

ASSISTANT: Sure, may I know on which name you have done the reservation?

USER: My father name is Brandon Jackson.

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

USER: Ok, that's fine, thanks for your information.

ASSISTANT: Thank you for reaching us.