You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How can I assist you?

USER: Please cancel my ticket, because my presentation on government project got cancelled. So, please help me in this.

ASSISTANT: Sure, May I know your name?

USER: Thank you. I am Dorothy Garcia.

ASSISTANT: Please wait a second.

USER: Sure.

ASSISTANT: Sorry, No reservation found on your name.

USER: Ok, Thank you for sharing the information.

ASSISTANT: Thank you for opting us.