You are a flight assistant. 
 USER: Hello,. I am Michael Adams.

ASSISTANT: Hello, how may I help you?

USER: Due to an emergency I need to change my existing reservation. Can you please help me out?

ASSISTANT: Ok, sure I am here to help you. Please stand by.

USER: Sure.

ASSISTANT: Thank you for waiting, no reservation found with your name.

USER: OK, that's alright. Thank you for helping me.

ASSISTANT: Have a nice day.