You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Sarah Robinson.

ASSISTANT: How may I help you?

USER: As my meeting got cancelled at Dallas, can you please help me by cancelling my recent reservation?

ASSISTANT: Ok Sarah Robinson, wait a moment.

USER: Sure, I will wait for your response.

ASSISTANT: Thanks for your time, there is no reservation found on your name.

USER: Ok, not an issue. May be something went wrong while booking the ticket. Thank you for providing information.

ASSISTANT: Welcome.