You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you?

USER: Can you avail me to book a flight from SEA to IAD?

ASSISTANT: Sure, to book a ticket may I know your name please?

USER: Christopher Smith.

ASSISTANT: Can you please share me your journey dates?

USER: My trip dates are Oct 22 and 24.

ASSISTANT: Let me know your requirements.

USER: I need a way station in my journey.

ASSISTANT: We found a flight with an American airline of flight 1000 in an economy class with single connection.

USER: Please reserve my seat.

ASSISTANT: Your ticket has been confirmed.

USER: Thanks for your kind service.

ASSISTANT: Thank you.