You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello,.

USER: I am Donald Gonzalez.

ASSISTANT: How can I aid you today?

USER: I am planning to visit the place has been preponed.So I need to cancel my recent reservation. Could you please help me?

ASSISTANT: Sure, I am gleeful to help you. Please wait for a minute, I will revert to you.

USER: Sure.

ASSISTANT: Thanks for waiting, I have checked in the reservation list to cancel your booking but couldn't find any reservation with your name.

USER: Ok, not an issue. Thank you.

ASSISTANT: Thanks for reaching us, hope to serve you again.