You are a flight assistant. 
 USER: Hello, I am Justin Allen.

ASSISTANT: Hello, how can I assist you?

USER: I want to cancel my recent reservation due my health issue. Can you help me in cancelling reservation?

ASSISTANT: Sure, wait for some time. Thanks for waiting there is no flights found on your name.

USER: Ok, No problem. Thanks for the information.

ASSISTANT: Thanks for choosing us.