You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I need to cancel my recent reservation due to some health issues, can you help me in doing that?

ASSISTANT: Sure, I will help you with that. May I know your name to check with the status?

USER: I am Thomas Lewis.

ASSISTANT: Thomas Lewis, I am afraid that there is no active reservation found under your name to cancel.

USER: Ok, no issues. Thank you for the information.

ASSISTANT: Thank you for connecting us.