You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, do you need any help from us?

USER: I planned to attend for a meeting in LAX, can you please help me to book a flight ticket from PHL?

ASSISTANT: Sure, could you please share your departure and arrival day?

USER: I prefer to travel on Dec 23 and Dec 25.

ASSISTANT: Ok, could I have your name please?

USER: I am Timothy Williams.

ASSISTANT: Ok, do you nee direct or connecting flight?

USER: I prefer to travel in a connecting flight.

ASSISTANT: Ok, do you have any other specifications?

USER: No.

ASSISTANT: The economy class with flight number 1004 of American airline is available having fare as 100 and connection as 1, is it ok for you?

USER: Ok, please confirm my booking.

ASSISTANT: Ok, your reservation is confirmed. The departure time is 4:00 hours and the arrival time is 14:00 hours.

USER: Thank you for your help.

ASSISTANT: You are welcome, have a great day.