You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I would like to change my recent reservation, will you help me with that?

ASSISTANT: Thank you. May I know your name?

USER: Thank you for accepting my request, myself Elizabeth Evans.

ASSISTANT: Thank you. Please wait for a while.

USER: Sure, I will wait.

ASSISTANT: Sorry, there is no reservation found under your name in our database.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: You are welcome and thank you for choosing us.