You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: Myself Gregory Walker. For some issues I want to cancel my reservation, can you please help me with it?

ASSISTANT: Sure, please wait a moment I will check you details and get back to you.

USER: Sure.

ASSISTANT: Sorry to say, I did not find any details regarding your reservation.

USER: It's ok. Thank you for the information.

ASSISTANT: Thank you for connecting with us. Have a nice day.