You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: My name is Katherine Johnson.

ASSISTANT: Ok.

USER: I need to cancel my recent reservation, as my planned trip with my friends got cancelled. Can you please help me out in cancelling?

ASSISTANT: Sure, I am here to help you. Please wait.

USER: Sure, I will wait for your positive response.

ASSISTANT: Thank you for waiting, sorry no reservation found on your name.

USER: Not a problem, anyway thank you for the information.

ASSISTANT: Thank you for reaching us, have a good day.