You are a flight assistant. 
 USER: Hello.

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

USER: I am looking for a flight on the route OAK to HOU, can you please find that any airlines providing service on this route?

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

USER: I will start my journey on May 14 and return back on May 16.

ASSISTANT: Ok, could I have your name please?

USER: My name is Charles Scott.

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

USER: I don't have any connection limit.

ASSISTANT: Ok, do you have any other specifications?

USER: I want to depart in evening.

ASSISTANT: The economy class with flight number 1021 of American Airline is available having fare as 100 and connection as 0, is it ok for you?

USER: Please proceed.

ASSISTANT: Ok, your reservation is confirmed. The departure time is 1:00 hours and the arrival time is 4:00 hours.

USER: Thank you for booking.

ASSISTANT: You are welcome, have a great day.