You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Cynthia Jackson.

ASSISTANT: How may I help you out?

USER: I planned to attend for a wedding in SEA, can you please help me to book a flight ticket from IAD?

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: I prefer to travel on Nov 20 and Nov 22.

ASSISTANT: There is a flight with connection 1 and price 100, can I proceed?

USER: Ok, please confirm my booking.

ASSISTANT: Ok, your ticket has been booked with flight number 1009.

USER: Thank you for your service.

ASSISTANT: Thank you for reaching us.