You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Shirley Clark.

ASSISTANT: How can I help you Shirley Clark?

USER: I have a concert to attend at Washington. Can you find any flights available from PHX to IAD?

ASSISTANT: Please share your desired travel dates?

USER: The journey dates are 01/31 and 02/02.

ASSISTANT: Please wait a while.

USER: Ok, take your time.

ASSISTANT: There is no flight available on your specified travel dates.

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

ASSISTANT: Thank you for reaching us.