You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I have to cancel my flight ticket reservation that I have to travel to other place on the same date to attend an important meeting, can you help me?

ASSISTANT: Sure, can I know your name please?

USER: Thank you and my name is Elizabeth Gonzalez.

ASSISTANT: Sorry Gonzalez, there is no reservation found on your name.

USER: Ok, no problem with that one, thank you for your quick help.

ASSISTANT: Thank you for approaching us.

USER: Welcome.