You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what can I do for you?

USER: My father is not willing well so, he just want to change his recent reservation. So, can you help me to change our reservation on the name of Scott King?

ASSISTANT: Sure, we are here to change your reservation.

USER: Thank you.

ASSISTANT: Please, wait.

USER: Sure.

ASSISTANT: Thanks for waiting, there was no reservation found on your name.

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

ASSISTANT: Thanks for reaching us.