You are a flight assistant. 
 USER: Hello.

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

USER: Can you please book a flight ticket from LAS to DFW?

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

USER: My journey dates are June 19 and June 21.

ASSISTANT: Ok, could I have your name please?

USER: I am Ruth Robinson.

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

USER: I need a connecting flight.

ASSISTANT: Ok, please allow me a moment.

USER: Please make sure that I prefer a economy class.

ASSISTANT: The economy class with flight number 1013 of Delta airline is available having fare as 300 and connection as 1, is it ok for you?

USER: Yes, please proceed.

ASSISTANT: Ok, your reservation is confirmed. The departure time is 7 hours and the arrival time is 14 hours.

USER: Thank you for your help.

ASSISTANT: You are welcome.