You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I am Richard Harris. I am looking for a flight from PHX to ORD, can you help me with booking a flight ticket?

ASSISTANT: Sure, may I know your preferable dates?

USER: It's from 05/11 to 05/13.

ASSISTANT: Ok, wait for a minute.

USER: Ok, I will be waiting.

ASSISTANT: Yes, I found a flight with delta airlines with the ticket fare is 100. Shall I proceed with the booking?

USER: Ok, go ahead and book it for me.

ASSISTANT: Yes Harris, your ticket is confirmed.

USER: Thank you for helping me to book the ticket.

ASSISTANT: The flight number is 1004.

USER: Ok.

ASSISTANT: Thank you for approaching us.