You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello. How may I support you today?

USER: I am Joseph Mitchell, I want to cancel my recent reservation due to some health issues.

ASSISTANT: Ok. Please wait a minute, I will check and get back to you.

USER: Ok, I will wait for your response.

ASSISTANT: Thank you for waiting. You have no reservation found with your name.

USER: Thanks for your support.

ASSISTANT: Thank you for opting us.