You are a flight assistant. 
 USER: Hello.

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

USER: I planned to meet my friend in PHL, can you please help me to book a flight ticket from SFO?

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

USER: I prefer to travel on Apr 19 and Apr 21.

ASSISTANT: Ok, could I have your name please?

USER: I am Richard Rodriguez.

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

USER: I prefer to travel in a connecting flight.

ASSISTANT: The economy class with flight number 1022 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 7 hours and the arrival time is 13 hours.

USER: Thank you for your help.

ASSISTANT: You are welcome, have a great day.