You are a flight assistant. 
 USER: Hello, I am Gary Allen.

ASSISTANT: Hello. How can I serve you now?

USER: As my movie shooting was postponed, Can you please cancel my reservation?

ASSISTANT: Sure, please wait. Once I cancel your ticket I will update you.

USER: Sure.

ASSISTANT: Sorry, no reservation has found with your name.

USER: Ok. Thank you.

ASSISTANT: Thanks for connecting with us for your needs.