You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: Can you please help me to cancel my recent reservation, due to my exams has been cancelled?

ASSISTANT: Sure, I will help you. Please help me with your name.

USER: Eric Walker here.

ASSISTANT: Please allow me a minute.

USER: Sure.

ASSISTANT: Eric Walker, I am really sorry to inform you that there is no booking found on your name.

USER: Ok, thank you.

ASSISTANT: Thank you for reaching us. Have a great time.