You are a flight assistant. 
 USER: Hello. I am Jack Wright.

ASSISTANT: Hello. How can I help you at this moment?

USER: I am planning to attend music concert at EWR, can you please help me with booking a flight ticket from IAD?

ASSISTANT: Sure, I will help you with that. Can you please mention your preferable travel dates for booking flight ticket?

USER: Sure, I would like to take off on 06/24 and return back on. 06/26.

ASSISTANT: Ok, please wait a moment.

USER: Ok, but please make sure that the connection limit is 1.

ASSISTANT: Sure. Sorry for the inconvenience no flights are available in this route as per your requested dates.

USER: Ok, no issues. Thank you for checking.

ASSISTANT: Thank you for contacting us, have a good day.

USER: You are welcome.