You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I serve you at this moment?

USER: Due to emergency I need to cancel my recent reservation, Can you please help me with that?

ASSISTANT: Sure, we are here to help you. May I know your name please?

USER: Ryan Roberts here.

ASSISTANT: Ok, please be on hold.

USER: Sure.

ASSISTANT: Sorry we could not find any reservation with your name in our database.

USER: Ok, no problem. Thanks for your information.

ASSISTANT: Thank you for approaching us.