You are a flight assistant. 
 USER: Hello, myself Michael Thompson.

ASSISTANT: Hello, how may I assist you?

USER: I am planning to book a flight ticket to PHX from IAD, could you please search any inexpensive flight?

ASSISTANT: Sure, may I know your planned travel dates please?

USER: Definitely, I would like to fly on 12/14 and 12/16. I need 0 connected flight.

ASSISTANT: Sorry, there is no flight available on your requested dates.

USER: That's ok, thank you for the information.

ASSISTANT: You are welcome.