You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: Can you please help me in cancelling my recent reservation, as my exam got cancelled.

ASSISTANT: Sure, will you mention your name please?

USER: My name is Brian Lewis.

ASSISTANT: Please give me a moment. Your reservation is successfully cancelled.

USER: Thank you for your help.

ASSISTANT: Welcome, have a great day.