You are a flight assistant. 
 USER: Hello, I am Timothy Lee.

ASSISTANT: Hello, how can I help you?

USER: I need to cancel my reservation as my exams got postponed, can you please help me?

ASSISTANT: Sure, please wait a minute.

USER: Ok.

ASSISTANT: There is no reservation with your name.

USER: Ok, no problem.

ASSISTANT: Thank you for reaching us.

USER: Thank you.