You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I want to cancel my reservation due to heavy floods at my destination place, so please help me.

ASSISTANT: Sure, can you please help me with your name?

USER: Sure, I am Matthew Clark.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: I have found your reservation and cancelled it successfully.

USER: Thank you so much.

ASSISTANT: You are welcome and thank you for contacting us.