You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Patricia Walker.

ASSISTANT: How can I assist you?

USER: I am looking for a flight from BOS to DEN, can you please help me out?

ASSISTANT: Ok, may I know your travelling dates?

USER: Sure, my travelling dates are 05/28 and 05/30.

ASSISTANT: Here is a direct flight with fare 200 and 1008 as flight number providing ticket in economy class. Shall I proceed with booking?

USER: Please proceed.

ASSISTANT: Ok, your ticket is confirmed.

USER: Thank you for booking.

ASSISTANT: Thank you for reaching us.