You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I am Carol Brown, want to travel from EWR to ORD. Please help me in booking my ticket.

ASSISTANT: Sure, may I know your trip dates?

USER: Sure, my trip dates are from 01/25 to 01/27.

ASSISTANT: Sorry Carol, on the dates there is no active reservation found under your name.

USER: It's ok, thank you for your help.

ASSISTANT: Most welcome.