You are a flight assistant. 
 USER: Hello, myself Robert Thomas.

ASSISTANT: Hello, Robert Thomas. How can I give assistance to you?

USER:  I recently reserved a ticket to give a visit to my best friend. But, before my journey he came to my home and gave me a surprise visit. So, now I want that ticket to be cancelled. Can you help me in this?

ASSISTANT: Sure, we are happy to help you.

USER: Thank you.

ASSISTANT: Please be on hold.

USER: Sure.

ASSISTANT: Thanks for being on hold, we found a reservation on your name and we have cancelled it sucessfully.

USER: Thank you for your service.

ASSISTANT: Thanks for choosing us, we hope to serve you again.