You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Dennis Campbell.

ASSISTANT: Dennis Campbell. How may I help you?

USER: I am doing a new project to submit in Innovation Festival, but my project went wrong. So, I will not attend that event. So can you please help me to cancel my recent reservation?

ASSISTANT: Sure, let me check the details by the name Dennis Campbell.

USER: Ok, I will wait.

ASSISTANT: Sorry, I did not find the match by the name Dennis Campbell in the data base.

USER: That's not a problem.

ASSISTANT: Thank you contacting us.

USER: Thanks for your information.