You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I serve you today?

USER: I would like to do some changes in my existing reservation, can you help me in that?

ASSISTANT: Sure, I will help you. May I know your name?

USER: Sure, the ticket has been reserved on the name Jerry Wright.

ASSISTANT: Please give me a minute.

USER: Sure, I will wait for your response.

ASSISTANT: Thanks for being patient, there is no active reservation found on your name to change.

USER: That's ok, no problem. Thank you for the information.

ASSISTANT: Thank you for availing us.