You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you now?

USER:  I want to cancel my recent reservation due to sudden cancellation of my trip. Can you help me?

ASSISTANT: Sure, can I have your  name please to check your  reservation status?

USER: Ryan Lopez here.

ASSISTANT: Ok, please wait a  moment.

USER: Sure.

ASSISTANT: Sorry Ryan Lopez, no reservation has  found under your name to cancel.

USER: No problem, Thanks for the information.

ASSISTANT: Thank you for choosing us.