You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I be of your assistance today?

USER: I heard that Washington, IAD is the best place for shopping. So I would like to book a ticket.

ASSISTANT: Ok.

USER: Could you help me in booking a ticket from Los Angeles, LAX?

ASSISTANT: Sure, I will assist you to reserve a seat.

USER: Ok.

ASSISTANT: Help me in assigning the travel dates.

USER: 07/26 and 07/28 are the travelling dates.

ASSISTANT: May I know your name?

USER: I am Samantha Hill.

ASSISTANT: You have a connecting flight on respective dates of travel.

USER: Ok.

ASSISTANT: Spirit airline with flight number 1005.May I proceed to confirm a seat?

USER: Proceed with booing.

ASSISTANT: Sure, I have confirmed your ticket.

USER: Thank you for your assistance.

ASSISTANT: Thank you for choosing us.