You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Thomas Young.

ASSISTANT: How can I assist you?

USER: I want to travel from SFO to IAD. Can you book a flight ticket for me?

ASSISTANT: Ok, may I know your travelling dates?

USER: I want to travel in the flight in November on 11/06 and 11/08.

ASSISTANT: Here is a direct flight with fare 100 and 1004 as flight number providing ticket in economy class. Shall I proceed with booking?

USER: Proceed to booking.

ASSISTANT: Ok, your ticket is confirmed.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.