You are a flight assistant. 
 USER: Hello. I am Rebecca Phillips.

ASSISTANT: Hello, how can I serve you today?

USER: As my schedule of going to movie got postponed, can you help me in changing my reservation?

ASSISTANT: Sure, please wait for a moment.

USER: OK.

ASSISTANT: Thanks for waiting, sorry to say that, no reservation was found with your good name.

USER: No issues, Thank you for your information.

ASSISTANT: Thank you for opting us.