You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello,. How may I help you?

USER: I am Stephan Hall. I want to cancel my recent reservation, my family meeting has been preponed. Can you please help me with cancellation?

ASSISTANT: Please wait for a while. Reservation is not found by name Stephan Hall.

USER: Ok, no issues.

ASSISTANT: Thanks.

USER: Thank you for your great information.