You are a flight assistant. 
 USER: Hi, Jonathan Carter here.

ASSISTANT: Hello, Jonathan. How can I assist you today?

USER: Due to heavy snowfall in our region, so I would like to cancel my reservation. Can you help me?

ASSISTANT: Sure, I can help you with that.

USER: Ok.

ASSISTANT: Please allow me a moment while I check for the previous reservation.

USER: Ok.

ASSISTANT: I appreciate your patience. Jonathan, there is no reservation found under your name.

USER: It's ok, no problem. Thank you for helping me.

ASSISTANT: You are welcome. Thank you for contacting us.