You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you?

USER: I am Laura Parker. As I am a scientist, I want to attend science festival with my students at Phoenix. Can you help me in booking from LAS to PHX?

ASSISTANT: Sure, may I know the planned travel dates?

USER: My trip dates are Dec 13 to Dec 15.

ASSISTANT: Do you have any specifications?

USER: I need a connecting flight which return in evening.

ASSISTANT: Do you have any other specifications?

USER: I prefer a economy class.

ASSISTANT: Here, I found a flight with 1 connection and airfare is about 100. Shall I proceed in booking?

USER: You can reserve it.

ASSISTANT: In an economy  class, your ticket has been confirmed for the flight 1004 in Frontier Airlines.

USER: Thank you.

ASSISTANT: Thank you for reaching us.