You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

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

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

USER: My journey dates are Aug 7 to Aug 9.

ASSISTANT: Do you have any specifications?

USER: I need a single connection of flight.

ASSISTANT: Do you have any other preferences?

USER: No.

ASSISTANT: Please provide your name.

USER: My name is Donald Walker.

ASSISTANT: The American Airlines provides an economy class flight with price 200 and the connections 1. Shall I confirm your ticket?

USER: Ok, please proceed.

ASSISTANT: Your ticket is booked. The flight number is 1007.

USER: Thank you.

ASSISTANT: Welcome, have a great day.