You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: Can you help me in booking my flight from PHL to LAS?

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

USER: My trip dates will be Feb 16th to Feb 18th.

ASSISTANT: Do you have any preferences about flight connections?

USER: I prefer a connecting flight.

ASSISTANT: Do you have any preferences about class?

USER: I prefer a class economy.

ASSISTANT: Please mention your name.

USER: Sure.

ASSISTANT: The Delta airlines providing an economy class flight with price 100 and the connections 1. Shall I confirm your ticket?

USER: You can proceed.

ASSISTANT: Your ticket is booked. The flight number is 1019.

USER: Thank you.

ASSISTANT: Please mention your name.

USER: I am Stephanie Lopez.

ASSISTANT: Thanks for reaching us.