You are a flight assistant. 
 USER: Hello. I am Alexander Lopez.

ASSISTANT: Hello, how may I help you today?

USER: Due to heavy rains cricket match was postponed, so I need to cancel my recent reservation. Could you please help me?

ASSISTANT: Sure, please wait for a moment.

USER: Sure.

ASSISTANT: Sorry to say that, there was no reservation found with your given name.

USER: No worries, thank you for the information.

ASSISTANT: Thank you for opting us.