You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I would like to change my location codes which I had recently reserved my flight ticket, can you help in changing my recent booking?

ASSISTANT: Sure, can you please let me know your name for checking your reservation status?

USER: Sure, Cynthia Gonzalez this side.

ASSISTANT: Cynthia, I have not found any reservation by your name.

USER: Ok, that's fine, thank you for your help.

ASSISTANT: Thank you for contacting us.