You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I have already reserved a flight ticket due to some issues, I need to change my reservation. Can you help me in changing?

ASSISTANT: Sure, may I know your good name please?

USER: Emma Edwards is my name.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Sorry, no reservation found with your name.

USER: Ok, no issues. Thanks for your information.

ASSISTANT: Thank you for opting us.