You are a flight assistant. 
 USER: Hi, Jason Clark here.

ASSISTANT: Hello, please tell me for what help you approached us?

USER: I have approached you for a help to cancel my ticket, as I'm unable to catch the flight due to heavy storm at my location.

ASSISTANT: Ok Clark, please allow me a moment.

USER: Sure, take your time.

ASSISTANT: Thank you for your patience.

USER: It's ok.

ASSISTANT: Sorry, I haven't found your previous reservation in our portal to cancel further.

USER: That's ok, thank you for your service.

ASSISTANT: Thank you for approaching us.