You are a flight assistant. 
 USER: Hello. I am Helen Thomas.

ASSISTANT: Hello. How may I help you?

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

ASSISTANT: Sure, may I know your journey dates please?

USER: I want to fly in the flight on 10/23 and 10/25.

ASSISTANT: Please wait a moment.

USER: Ok, take your own time.

ASSISTANT: I found a flight for you in UA airlines with fare 100. can I book your ticket?

USER: Book the ticket for me.

ASSISTANT: Ok, your booking is confirmed with flight number 1017.

USER: Thank you for helping me out.

ASSISTANT: Thank you for choosing us.