You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I support you today?

USER: I heard that Washington is the best place for site seeing, so I would like to visit it with my parents. Can you be my helping hand to book a flight ticket on 11/19?

ASSISTANT: Sure, I am happy to help you. From where do you want to start your journey?

USER: I would like to start my journey from New York, NY - EWR.

ASSISTANT: Ok, When do you want to return?

USER: I intend to return on 11/21.

ASSISTANT: Ok, May I know your destination airport code?

USER: Sure, my destination airport code is DC - DCA.

ASSISTANT: Ok, Kindly mention your price limit.

USER: Ok, my price limit is 1000.

ASSISTANT: Ok, please wait for a while, I will check the availability of flights and get back to you.

USER: Ok, I will wait.

ASSISTANT: Thank you for your patience, we found a connected flight in Hawaiian airline. The flight number is 1010. Shall I proceed for booking?

USER: It's perfect, you can proceed.

ASSISTANT: Ok, To proceed for booking, May I know your name?

USER: Sure, my name is Frank Jackson.

ASSISTANT: Ok, your ticket has been booked with a fare of 200.

USER: Ok, Thanks for your kind service.

ASSISTANT: Thank you for choosing us.