You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Dorothy King.

ASSISTANT: How can I assist you?

USER: I want to travel from DEN to LAS locations, can you please help me in booking a flight ticket?

ASSISTANT: Sure, I will assist you. May I know your travel dates please?

USER: My travelling dates are from 11/29 and 12/01.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: There are no flight available at your travel location provided.

USER: It's ok. Thank you for the information.

ASSISTANT: Thank you for choosing our agency.