You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Elizabeth Roberts.

ASSISTANT: How may I assist you?

USER: I would like to attend a seminar in Washington-IAD, can you help me in booking a ticket from Denver-DEN?

ASSISTANT: Sure, I will help you. Could you please help me with your planned travel dates?

USER: My departure date is on 10/01 and return on 10/03.

ASSISTANT: Please wait a moment.

USER: Sure, take your time.

ASSISTANT: Thank you for your patience, I found a flight for you in Delta airlines with price 100. Can I book your ticket?

USER: Delta airlines is ok for me, please proceed for booking.

ASSISTANT: Ok, your booking is confirmed with flight number 1028.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us. Have a nice day.