You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I have to change my flight ticket reservation that I am unable to travel on those dates, can you please change my flight ticket booking?

ASSISTANT: Sure, I can do that for you. I will check your reservation status and get back to you.

USER: Thank you.

ASSISTANT: May I know your name?

USER: Sure, my name is Emma Campbell.

ASSISTANT: Emma, I have not found any reservation under your name in our database.

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

ASSISTANT: Thank you for choosing us and have a nice day.

USER: You are welcome.