You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: I am Kenneth Martinez. Owing an emergency want to change my reservation, so can you help me with it please?

ASSISTANT: Sure, I will help you. Please hold on a moment.

USER: Thank you, take your time.

ASSISTANT: Thanks for waiting, there is no active reservation on your given name.

USER: That's ok. Thank you for the response.

ASSISTANT: Thank you for opting us.