You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Margaret Thompson.

ASSISTANT: Margaret, how may I help you?

USER: Can you help me in cancelling my recent reservation, as my interview is cancelled?

ASSISTANT: Sure, please hold on for a while.

USER: Ok.

ASSISTANT: Sorry, no reservation is found by your name.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for reaching us.