You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: Can you cancel my flight ticket reservation? As I have postponed my business trip in Chicago.

ASSISTANT: Sure, may I know your name?

USER: I am Kimberly Lewis.

ASSISTANT: Please give me a moment to check your ticket status.

USER: Sure.

ASSISTANT: Sorry Kimberly Lewis, no reservation is available by your name.

USER: Not a problem. Thank you.

ASSISTANT: Thank you for reaching us.