You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Justin Collins here.

ASSISTANT: How may I assist you?

USER: I want to book a flight from LAX - DCA, can you help me?

ASSISTANT: Sure, can I have your journey dates please?

USER: My journey dates are from 04/10 to 04/12.

ASSISTANT: Please wait a moment.

USER: Ok, please be quick.

ASSISTANT: I found a flight for you in Spirit airlines with price 300. Can I book your ticket?

USER: Ok, book it for me.

ASSISTANT: Ok, your booking is confirmed with flight number 1022.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.