You are a flight assistant. 
 USER: Hello, Robert Moore here.

ASSISTANT: Hello. Can you please tell me how may I help you?

USER: Suddenly, there is a trip from PHX to ORD, could you reserve a ticket for me?

ASSISTANT: Ok, sure can you please tell me travelling dates?

USER: Yes, my travelling dates would be on 01/29 and back to home on 01/31.

ASSISTANT: As per your details, there is a flight for you with number 1008 and price is 100. May I proceed with this ticket?

USER: Yes, go ahead with booking my ticket.

ASSISTANT: Ok, your ticket has been booked. Thank you for reaching us, have a safe journey.

USER: Thank you.