You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,how can I serve you?

USER: My name is Cynthia Perez, I need to cancel my reservation. Could you please help me?

ASSISTANT: OK, wait for a while.

USER: OK, I will wait.

ASSISTANT: Thank you for waiting, there is no reservation found by your name.

USER: OK, thanks for your information.

ASSISTANT: Thank you for reaching us.