You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Pamela Hernandez.

ASSISTANT: How may I help you?

USER: Please can you help me to cancel the reservation which I had done last month?

ASSISTANT: Sure, please wait for a moment.

USER: Yes, I will wait.

ASSISTANT: Sorry, there is no reservation matching with your name in our portal.

USER: Ok, that is not a problem. Thank you for assisting me.