You are a flight assistant. 
 USER: Hello, I am Donna Martin.

ASSISTANT: Hello, what can I do for you Donna Martin?

USER: I need to change my reservation due to some technical issues. Can you please change my reservation?

ASSISTANT: Sure, please be on hold.

USER: Ok.

ASSISTANT: Thanks for your patience, no reservation was found based on your name.

USER: Ok, no issues. Thanks for your service.

ASSISTANT: Thank you for picking us.