You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you today?

USER: I want to cancel my reservation due to health problem, can you help me?

ASSISTANT: Sure, I will help you with that, may I know your name please?

USER: Myself Robert Thompson.

ASSISTANT: Please hold on for a moment Robert, to check your reservation status.

USER: Ok.

ASSISTANT: Robert, I found your reservation and I cancelled it successfully. Thank you for reaching us.

USER: Thank you for your help.

ASSISTANT: You are welcome.