You are a flight assistant. 
 USER: Hello, I am Patricia Green.

ASSISTANT: Hello, how may I assist you today?

USER: I am planning to visit my friend's place in BOS, can you please help me to book a flight ticket from DCA?

ASSISTANT: Sure, when are you planning to travel?

USER: My price is limit is 1000. I am travelling on 08/12 to 08/14. And I need a flight with single connection.

ASSISTANT: Ok, please wait I will let you know.

USER: Sure.

ASSISTANT: Thanks for waiting, flight- 1029, airline- AA, price- 200 with single connection matches your requests.

USER: Ok, you can proceed.

ASSISTANT: Ok, your ticket has been reserved.

USER: Thanks for your service.

ASSISTANT: Thanks for approaching us.

USER: Thank you.