You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you today?

USER: Can you please help me to book a flight ticket from PHL to LAS?

ASSISTANT: Sure, will you mention your travelling dates please?

USER: My trip in May from 29th to 31st.

ASSISTANT: Do you have any specifications?

USER: I need a connecting flight.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Please provide your name.

USER: Shirley Turner here.

ASSISTANT: The Frontier Airlines providing an economy class flight with price 100 and the connections 1. The departure time is 15:00 PM and return time is 16:00 PM. Shall I confirm your ticket?

USER: Yes, proceed.

ASSISTANT: Your ticket is booked. The flight number is 1021.

USER: Thank you for your help.

ASSISTANT: Welcome, have a great day.