You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I am looking to cancel my recent ticket because my planned trip got cancelled. Can you please help me to do that?

ASSISTANT: Sure, I will help you. May I know your name?

USER: Thank you for accepting my request. My name is Christopher Perez.

ASSISTANT: Please, standby.

USER: Ok, take your time.

ASSISTANT: Thank you for waiting, I did not find any reservation on your name to cancel.

USER: It's ok, not a problem with that. Thank you for your help.

ASSISTANT: Thank you for availing us.