You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: I am Jacob Green. Due to some problems my trip was cancelled so can you please cancel my flight ticket?

ASSISTANT: Please give me a moment.

USER: Ok.

ASSISTANT: There is no reservation found with your given name in our data.

USER: Oh! It's ok no problem.

ASSISTANT: Thank you for availing us.

USER: Thank you for your information.