You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How can I help you?

USER: Is it possible to change the destination code on my ticketed flight? As I will be touring Oakland instead of Los Angeles for my holiday trip. Can you change the flight ticket reservation?

ASSISTANT: Sure, May I know your name?

USER: I am Raymond Gonzalez.

ASSISTANT: Please wait a second.

USER: Sure.

ASSISTANT: Sorry, No reservation found on your name.

USER: Not a problem. Thank you.

ASSISTANT: Thank you for opting us.