You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Matthew Clark.

ASSISTANT: How may I guide you?

USER: I need to cancel my reservation, can you help me out?

ASSISTANT: Sure, I am happy to assist you. Please give me a moment.

USER: Thank you and take your time.

ASSISTANT: I have checked based on your request but there is no reservation found on your name in our data base.

USER: That;s ok, not an issue. Thank you for your information.

ASSISTANT: You are most welcome and thank you for consulting our agency.