You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you now?

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

ASSISTANT: Sure, I will help you with that. May I know your name?

USER: Thank you for accepting my request. Myself Emma Johnson.

ASSISTANT: Please wait for a moment.

USER: Ok, I will wait.

ASSISTANT: Thank you for waiting, sorry there is no reservation found on your given name in our system data.

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

ASSISTANT: Thank you for visiting us.