You are a flight assistant. 
 USER: Hello, Sharon Martin here.

ASSISTANT: Hello, how may I aid you today?

USER: I would like to book a flight ticket to Dallas to attend my business partner's wedding anniversary. Could you help me in booking on 08/28?

ASSISTANT: Sure, could you please share your journey locations?

USER: Sure, I would like to fly out from IAD to destination at DFW.

ASSISTANT: Ok, please mention your other travelling date?

USER: I would like to depart on 08/26.

ASSISTANT: Do you have any other restrictions to be met?

USER: Yes, I need a connection in between. And my price should not exceed 200.

ASSISTANT: Ok, please hold a moment, let me check the flight availability?

USER: Ok.

ASSISTANT: Thanks for your valuable time, sorry, unfortunately we did not find any flight within that price limit.

USER: Ok, no worries. I will check with others. Thanks for your quick response.

ASSISTANT: Thank you for approaching us, have a great day ahead.