You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Due to some health issue, I want to cancel my recent reservation. Can you please help me with this?

ASSISTANT:     Sure, I am here to help you. May I know your name please?

USER: Sure, I am Kathleen White.

ASSISTANT: Ok, please stand by.

USER: Sure.

ASSISTANT: Thank you for waiting, sorry to inform no reservation found on your name.

USER: Ok, Thank you for your service.

ASSISTANT: Thank you for reaching us, have  a nice day.