You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you for the day?

USER: I need to book a flight ticket from OAK to LAS, can you help me in booking a flight?

ASSISTANT: When you are wiling to travel?

USER: Sure, my journey dates are Dec 27 and Dec 29.

ASSISTANT: May, I know your good name?

USER: Sure, Kimberly Thompson here.

ASSISTANT: Do you have any connection limit?

USER: I prefer maximum one connection.

ASSISTANT: Do you have any other requirement.

USER: No.

ASSISTANT: Sorry, we found no flights on your given dates.

USER: Ok, no issues. Thank you for your information.

ASSISTANT: Thank you for reaching us.