You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am Deborah Williams. Can you help me in booking from Chicago, ORD to Minneapolis, MSP?

ASSISTANT: Sure, on which dates you are preferring to travel?

USER: My preferred dates are from Nov 2 to Nov 4.

ASSISTANT: Sorry, on these dates there is no flights available.

USER: Ok, No issues. Thank you.

ASSISTANT: Most welcome.