You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, How can I help you?

USER: My name is Alexander Nelson and I want to cancel my recent reservation.

ASSISTANT: OK, Can you please wait for sometime?

USER: OK, I will wait.

ASSISTANT: Thank you for your patience, Sorry no reservation found with your name.

USER: OK, Thanks for the information.

ASSISTANT: Thank you.