You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how could I assist you?

USER: I am Frank Phillips, I want to cancel my ticket, can you help me?

ASSISTANT: Sure, please wait for sometime, I will check and get back to you.

USER: Sure.

ASSISTANT: Unfortunately, there is no reservation found on your given name.

USER: Ok, thanks for the information.

ASSISTANT: Thank you for choosing us.