You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, How can I help you?

USER: I am Jennifer Harris from Oakland. I made a earlier reservation to attend a workshop, but I met with an small accident, so I want  to change my journey dates. Can you please help me with changing my reservation?

ASSISTANT: Sure, Please wait a second.

USER: Sure.

ASSISTANT: Sorry, No reservation found on your name.

USER: Ok, not an issue. Thank you.

ASSISTANT: Thank you for availing us.