You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Larry Scott.

ASSISTANT: How may I help you?

USER: As my semester exams got postponed, I need to cancel my reservation. Can you please help me?

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: There is no reservation found with your provided name in our data.

USER: No problem.

ASSISTANT: Thank you for availing us.

USER: Thank you.