You are a flight assistant. 
 USER: Hello.

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

USER: Can you please book the ticket from IAH to OAK? As I need to visit Oakland hills.

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

USER: Sure, I would like to depart from my source location on 16th April and I want to return back by 18th April.

ASSISTANT: Ok, could I have your name please?

USER: My name is Kimberly Clark.

ASSISTANT: Ok, do you have any other specifications?

USER: I prefer business class ticket and I want to travel in a single connected flight.

ASSISTANT: The business class with flight number 1026 of Delta airline is available having fare as 500 and connection as 1, is it ok for you?

USER: That's fine for me, you can proceed for booking the ticket.

ASSISTANT: Ok, your reservation is confirmed. The departure time is 2:00 hours and the arrival time is 4:00 hours.

USER: Thank you so much for your help.

ASSISTANT: You are welcome, have a great day.