You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Christine Johnson.

ASSISTANT: How may I serve you?

USER: I would like to fly from DEN to SEA, so can you help me for this?

ASSISTANT: Ok, I can help you, on which dates that you want to book the ticket?

USER: I am going to fly on 12/13 and 12/15.

ASSISTANT: Wait a moment.

USER: Ok, I will wait for your reply.

ASSISTANT: There is a connecting flight available in Southwest airlines, is it suitable for you to travel?

USER: Sure, proceed to booking.

ASSISTANT: Johnson, your ticket booking in done in 1006 flight, have a happy journey.

USER: Thank you for your services.

ASSISTANT: Our work is to serve you.