You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you?

USER: I want to book a flight to New York to visit World Mobile Congress. Can you help me with that?

ASSISTANT: Sure, when are you planning to make your trip?

USER: I will travel on Nov 19 and return on Nov 21.

ASSISTANT: Will you please provide me your airport codes?

USER: My source point is PHL and my destination is JFK.

ASSISTANT: How many connections are required?

USER: I am fine with any flight.

ASSISTANT: Do you have any specifications?

USER: No.

ASSISTANT: May I know your name?

USER: My name is John Davis.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: There is an American airline with flight number 1000 going on your way with 0 connections and price of 100. Is that fione?

USER: Please proceed with booking.

ASSISTANT: Your booking has been confirmed.

USER: Thank you for helping me.

ASSISTANT: Than you for approaching us, please be there 3 hours before your flight departs.