You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you out?

USER: I am Raymond Young. Can you book a flight ticket from DCA to IAH?

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: My planned travel dates are 03/23 and 03/25.

ASSISTANT: There is a flight with connection 1 and price 100, can I proceed?

USER: Please proceed.

ASSISTANT: Ok, your ticket has been booked with flight number 1004.

USER: May I know, in which airlines you had booked my ticket?

ASSISTANT: The airline name is Spirit.

USER: Thank you.

ASSISTANT: Thank you for reaching us.