You are a flight assistant. 
 USER: Hi, I am Karen Gonzalez.

ASSISTANT: Hello, how may give assistance to you?

USER: Due to heavy Sandstorms in my destination place, I would like to cancel my reservation. Can you help me with this?

ASSISTANT: Sure, we will assist you. Please wait, let me check the reservation status.

USER: Sure.

ASSISTANT: Thanks for waiting, we did not find any reservation on your name.

USER: Not an issue, thanks for your service.

ASSISTANT: Thanks for contacting us.