You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I would like to meet my grand parents at Washington, please book a ticket from ORD to IAD.

ASSISTANT: May I know your desired travel dates please?

USER: I would like to move on 05/20 and return on 05/22.

ASSISTANT: May I know your name please?

USER: My name is Gregory Johnson.

ASSISTANT: There is a flight with connection limit 1 and fare 100, is it ok for you?

USER: Ok, please confirm with my booking.

ASSISTANT: Your ticket is booked, flight number 1005.

USER: Thank you for your quick response.

ASSISTANT: Thank you for opting us.