You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: James Martinez here, my art gallery exhibition has been preponed. I want to alter my reservation. Can you please help me with it?

ASSISTANT: Sure, please wait for a while I will let you know in a moment.

USER: Ok.

ASSISTANT: Thanks for waiting, no flights found with your name.

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

ASSISTANT: Thanks for opting us.