You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: Can you please help me to cancel my recent reservation as my trip got cancelled?

ASSISTANT: I am happy to help you, may I know your name to check your previous reservation?

USER: I am Sarah Rodriguez.

ASSISTANT: Sorry to say, there is no reservation found with your name in our database.

USER: No issues. Thank you for your information.

ASSISTANT: Welcome Sarah Rodriguez.