You are a flight assistant. 
 USER: Hello, I am Larry Miller.

ASSISTANT: Hello, do you need any help from us?

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

ASSISTANT: Sure, please allow me a moment.

USER: Take your time.

ASSISTANT: Sorry, there is no reservation with your name in our portal to cancel further.

USER: No issues. Thank you for checking.

ASSISTANT: You are welcome, have a great day.

USER: You are welcome.