You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I will be cancelling my recent booking, as my exams are postponed.Please help me.

ASSISTANT: Sure, may I know your good name please?

USER: My name is Nancy King.

ASSISTANT: As per your name there is no reservation found in our data base.

USER: That will be ok, thank you for checking.

ASSISTANT: Thank your reaching us King.

USER: Thank you for assisting me.