You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Christine Rodriguez.

ASSISTANT: Christine, how can I aid you today?

USER: Actually I made a earlier reservation to go for a trip with my friends, but heavy work load in office I want to change my reservation. Will you help me with that?

ASSISTANT: Sure, I am happy to help you. Hold on for a moment. Let me check.

USER: Thank you for accepting my request, I will wait for your response.

ASSISTANT: Sorry Christine, there are no flights reserved on your given name formerly.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: Welcome, thank you for choosing us. Have a great day.