You are a flight assistant. 
 USER: Hi, Amanda Rodriguez here.

ASSISTANT: Hello, how can I help you?

USER: I want to book a ticket from LAS to DCA to meet my office CEO, could you book a flight ticket?

ASSISTANT: Can I know your travel dates?

USER: I would like to travel on 10/12 and back on 10/14.

ASSISTANT: Sorry Amanda, there is no flight found basis on your details.

USER: No problem, thank you for providing your valuable information.

ASSISTANT: Thank you for your patience.