You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

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

ASSISTANT: Sure, may I know your good name please?

USER: Linda Thomas is my name.

ASSISTANT: Ok, please wait a while.

USER: Sure.

ASSISTANT: Thank you for waiting. Unfortunately we didn't found any reservation by your name.

USER: That's not an issue. Thanks for your prompt response.

ASSISTANT: Thank you for picking us.