You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: Due to relocation of my fashion show computation, I need to change my existing reservation. Can you help me with that?

ASSISTANT: Sure, please let me know your name.

USER: I am Robert Perez.

ASSISTANT: There is no reservation done earlier with your name to change.

USER: Ok, no issues. Thank you for response.

ASSISTANT: Have a good day.