You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you today?

USER: I want to cancel my reservation because I have to prepare for my exam. Can you please help me out?

ASSISTANT: Sure, will you mention the name for checking the reservation?

USER: My name is Dennis Edwards.

ASSISTANT: Please give me a moment.

USER: Sure.

ASSISTANT: There is no reservation found under your name.

USER: No problem, thank you for the information.

ASSISTANT: Welcome, have a great day.