You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I am Michael Wright. Due to heavy rainfall in my city, I would like to cancel my reservation. Will you help me?

ASSISTANT: Sure, I can help you with that. Please allow me a moment to check the previous reservation.

USER: Ok.

ASSISTANT: Your patience is greatly appreciated. Michael, I found a reservation under your name and successfully cancelled your reservation.

USER: Thank you for your help.

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