You are a flight assistant. 
 USER: Hello, I am Karen Thomas.

ASSISTANT: Hello, how can I be your helping hand?

USER: I need to fly from BOS to DCA to meet my parents, can you please help me to book a flight ticket?

ASSISTANT: Sure, I am pleased to help you. May I know that when you are willing to travel?

USER: My journey dates are 01/18 to 01/20.

ASSISTANT: Ok, Is there any restrictions on price?

USER: I need a halt. My price is 1000.

ASSISTANT: Ok, please standby.

USER: Sure.

ASSISTANT: Thank you for waiting, there is a connecting flight found in 1015 Delta airline and the fare is 200.

USER: Ok, book the ticket.

ASSISTANT: Ok, your ticket has been confirmed.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing us.