You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you at this moment?

USER: Due to health Issue, I cannot attend my meeting. Can you help me to cancel my reservation?

ASSISTANT: Sure, I will help you with that. Can you please provide your name to check your reservation?

USER: Sure, my name is Mary Johnson.

ASSISTANT: Ok, please be on hold.

USER: Ok.

ASSISTANT: We regret that, there is no reservation found with your name in our records.

USER: That's ok, thank you for the information.

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