You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello.

USER: I am Margaret Mitchell.

ASSISTANT: How can I aid you today?

USER: I want to cancel my recent reservation due to medical emergency. Can you help me?

ASSISTANT: Sure Margaret Mitchell, please wait for a while.

USER: Ok.

ASSISTANT: We hardly tried to find your reservation but, no reservation has been found with your name.

USER: Thank you.

ASSISTANT: Thank you for approaching us, have a nice day.