You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I am Shirley Martinez, as my exams are postponed I want to cancel my recent reservation. Can you help me?

ASSISTANT: Sure, just a moment I will check the reservation list.

USER: Sure.

ASSISTANT: Thanks for waiting, unfortunately we did not found any reservation on this name.

USER: Ok, not a problem.

ASSISTANT: Thanks for opting us.

USER: Thanks for helping me.