You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I need to cancel my ticket due to my health issue, can you help me?

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

USER: I am Michael Baker.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Thank you for your patience, There was no reservation found on your name to cancel it.

USER: That's ok. Thank you for your help.

ASSISTANT: Thank you for opting us.