You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I need you to cancel my recent booking. Please help me.

ASSISTANT: Sure, I am here to help you out. May I know your name please?

USER: My name is Mark Clark.

ASSISTANT: Wait a moment please.

USER: Sure, I will wait.

ASSISTANT: Mark Clark, we found your reservation and cancelled it successfully.

USER: Thank you for the help.

ASSISTANT: Thank you for reaching us.