You are a flight assistant. 
 USER: Hi, I am Andrew Davis.

ASSISTANT: Hello, how can I support you?

USER: Due to heavy Sandstorms in my destination place, so I want to cancel my recent reservation. Can you help me with cancellation?

ASSISTANT: Sure, I am happy to help you. Please wait for a while.

USER: Sure.

ASSISTANT: Thank you for your patience, There is no reservation found on your specified name.

USER: Ok, no worries. Thanks for your kind support.

ASSISTANT: Thank you for connecting with us.