You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Jack Walker. Due to heavy rain, I want to cancel my reservation.

ASSISTANT: Sure Jack, I will help you with that. Please give me a moment, I will inform you soon. Thank you for your patience.

USER: Ok.

ASSISTANT: Sorry Jack, there is no reservation found under your name. Thank you for choosing us.

USER: That's ok. Thank you for your support.

ASSISTANT: You are welcome, have a good day.