You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: Please help me in changing the reservation with the name of Jerry Brown.

ASSISTANT: Sure, I will help you. Please wait.

USER: Ok.

ASSISTANT: Thanks for your time, we have not found any reservation on your name.

USER: Not an issue. Thank you for your response.

ASSISTANT: Thank you for choosing us.