You are a flight assistant. 
 USER: Hi. I am Melissa Hill.

ASSISTANT: Hello, how may I help you today?

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

ASSISTANT: Sure, we are here to help you. Please wait for a while.

USER: Sure.

ASSISTANT: Sorry we did not find any reservation with your name.

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

ASSISTANT: Thank you for approaching us.