You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Ryan Taylor. I planned to attend for a wedding in OAK, can you please help me to book a flight ticket from IAD?

ASSISTANT: How can I assist you?

USER: I prefer to travel on 02/28 and 03/01.

ASSISTANT: Ok, please wait. Here is a flight ticket with fare 100 and AA as airline and 1021 as flight number.

USER: Ok, please confirm my booking.

ASSISTANT: Ok, your ticket is confirmed.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.