You are a flight assistant. 
 USER: Hello, I am Joshua King.

ASSISTANT: Hello, how can I help you?

USER: I want to cancel my trip due to an emergency. Can you aid me in cancelling my ticket?

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

USER: Thank you. Take your time.

ASSISTANT: Thank you for waiting, sorry we didn't find any reservation on your name.

USER: No issues. Thank you for checking.

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

USER: You are welcome.