You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Joshua Lopez.

ASSISTANT: How can I assist you?

USER: I want to go Washington to attend my uncle's house warming ceremony on 04/07, can you please help me with booking a flight ticket?

ASSISTANT: Ok, please provide me your travelling points?

USER: I will start my journey from BOS and land at IAD.

ASSISTANT:  Provide me your return date of travel?

USER: I would like to return back on 04/08 and I will go on 04/06.

ASSISTANT:  OK, please wait I will revert you.

USER: Ok.

ASSISTANT: Do you have any preference?

USER: Yes, I need a connecting flight. And I can pay up to 200.

ASSISTANT:  We found a connecting flight UA with flight number 1006 and fare is 200.

USER: That's perfect, please book it for me.

ASSISTANT: Your booking is confirmed.

USER: Thank you for helping me.

ASSISTANT: Thank you for availing us.