You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I would like to book a ticket from IAD to SEA, can you please help me out?

ASSISTANT: Sure, I am here to help you. Could you please tell me your journey dates?

USER: I am travelling on these dates Jan 22nd and 24th.

ASSISTANT: Ok, please tell me your name.

USER: Robert Jones here.

ASSISTANT: Is there any concern about the connection limit?

USER: I need single connected flight.

ASSISTANT: Ok, please send me your other requirements.

USER: I prefer normal-cost airlines.

ASSISTANT: There is a flight in the normal-cost airlines that is Delta airlines which is providing a single connecting flight with ticket fare 300. Is that fine for you?

USER: Ok, you can proceed.

ASSISTANT: Ok, I have booked your ticket with the flight-1018.

USER: Thank you for your services.

ASSISTANT: Thank you for choosing us.