You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you today?

USER: Owing to an emergency, I want to cancel my recent reservation. Can you help me out?

ASSISTANT: Sure, I will hep you with that. Please wait for a while, I will check it.

USER: Ok.

ASSISTANT: May I know your name please?

USER: Sure, my name is Kathleen Johnson.

ASSISTANT: I am sorry to say that there is no reservation found under your name.

USER: That's ok, thank you.

ASSISTANT: Thank you for contacting us, have a great day.