You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: John Baker here.

ASSISTANT: How may I help you?

USER: Can you cancel my flight ticket reservation? As I am a cop and the investigations regarding a terrorist attack in New York has been postponed.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Sorry, there is no reservation found basis on your details.

USER: No problem. Thank you.

ASSISTANT: Thank you for reaching us.