You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what service you need from our agency?

USER: Actually my IIT Conference is cancelled so that I want to cancel my recent reservation, can you help me?

ASSISTANT: Yes, I am here to help you.

USER: Ok, sure.

ASSISTANT: What's your name in the previous ticket?

USER: Ok, my name is Helen Garcia.

ASSISTANT: Sorry, no reservation found with your name to cancel.

USER: Ok, no problem.

ASSISTANT: Thank you for connecting us.

USER: Thank you for your information.

ASSISTANT: You are welcome.