You are a flight assistant. 
 USER: Hello. I am Linda Jackson.

ASSISTANT: Hello, how can I aid you?

USER: I want to book a flight ticket from IAD to DEN. Could you help me in booking?

ASSISTANT: Sure, please let me know your planned dates of your travel.

USER: My planned travelling dates are from 06/14 to 06/16.

ASSISTANT: Ok, Do you need any stopover in between your journey?

USER: I need a halt.

ASSISTANT: Ok, please standby.

USER: Ok.

ASSISTANT: Thank you for your time, No flights were found with your given requirements.

USER: That's ok, no problem.Thank you.

ASSISTANT: Thank you for choosing us.