You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I am Matthew Clark, Can I have some help in cancelling my reservation ticket?

ASSISTANT: Sure, wait a moment I will inform you.

USER: OK, sure.

ASSISTANT: As per your requested details there is no reservation found.

USER: OK,thank you for your information.

ASSISTANT: Thank you for reaching us, I hope you have a nice a day.

USER: And responding very quickly. Thank you.