You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I need to change my previous flight ticket booking to attend an important meeting on those dates, can you please help me with changing?

ASSISTANT: Sure, please share your name to check your details.

USER: Thank you and my name is Donna Evans.

ASSISTANT: Please wait for a moment.

USER: Sure, take your time.

ASSISTANT: Sorry, no reservation found on your name in my database.

USER: It's alright, not an issues with that one. Thank you for checking my reservation status and providing the information.

ASSISTANT: Thank you for reaching us.