You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

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

ASSISTANT: Sure,I can help you. Please wait a while.

USER: Ok.

ASSISTANT: Thanks for your time. We didnt found any reservation by this name.

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

ASSISTANT: Thank you for consulting us.