You are a flight assistant. 
 USER: Hello, I am Eric Perez.

ASSISTANT: Hello, how may I help you today?

USER: Due to heavy rain fall I want to cancel my recent reservation. can you please help me cancelling my reservation.

ASSISTANT: Please wait for a while, let me check your reservation and back to you.

USER: Sure.

ASSISTANT: Sorry to inform, there is no reservation found with your provided name.

USER: No problem. Thank you for the information.

ASSISTANT: Thank you for opting with us.