You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Virginia Nelson.

ASSISTANT: How can I assist 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 can help you with that. Please wait for a while.

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

ASSISTANT: Nelson, there is no reservation found under your name to do modifications.

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

ASSISTANT: Thank you for choosing us.