You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

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

ASSISTANT: Sure, may I know your name to check for the previous reservation?

USER: Thank you for accepting my request, myself Jessica Hill.

ASSISTANT: Please allow me a moment.

USER: Sure, take your own time.

ASSISTANT: There is no reservation found under your name in our data base.

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

ASSISTANT: Thank you for contacting us.