You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, How can I assist you?

USER: Last week I think my brother has booked a ticket for me. It was for a independance day celebration in united states. Please go ahead and cancel my ticket.

ASSISTANT: Sure, Can I know your name please?

USER: My name is Emma Wright.

ASSISTANT: OK, Please wait a moment. Thank you for waiting.

USER: OK.

ASSISTANT: Unfortunately there is no recent  ticket found against your name. Thank you for reaching us.

USER: Thank for your information.