You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Edward Thompson.

ASSISTANT: How may I guide you?

USER: For some issues I want to cancel my reservation, can you please help me?

ASSISTANT: Sure, please wait a moment.

USER: Sure.

ASSISTANT: Edward, no reservation has been found on your name in our database.

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

ASSISTANT: Thank you for choosing us.