You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: My name is Elizabeth Harris, can you I know if it is possible to cancel reservation?

ASSISTANT: Sure, please wait for a moment.

USER: Ok, I will wait a moment.

ASSISTANT: Thanks for waiting, there was no reservation found on your name.

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

ASSISTANT: Thanks for choosing us.