You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I render you at this moment?

USER: I would like to change my reservation which is under my name. Can you please help me with that?

ASSISTANT: Sure, may I know your good name please?

USER: Sure, my name is Stephanie Moore.

ASSISTANT: Ok, please wait for few  minutes.

USER: Sure, take your time.

ASSISTANT: There is no existing reservation found on your name in our records.

USER: Ok, no issues. Thank you for checking.

ASSISTANT: Thank you for reaching us.

USER: You are welcome.