You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: My name is Nicholas Taylor and I have to change my ticket reservation, can you please help me?

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: Sorry Taylor, there is no existing reservation under your name.

USER: Ok, that's fine, no issues with that one, thank you for your help.

ASSISTANT: Thank you for reaching out here.

USER: Most welcome.