You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am looking for a direct flight for my journey, can you please help me out with that?

ASSISTANT: Sure, let me know your travel dates please?

USER: Thank you for taking my request into consideration, I am planning to leave on Jan 15 and please book my return ticket on Jan 17.

ASSISTANT: Could you please share me your airport codes?

USER: Sure, I want to travel from JAK to LAS.

ASSISTANT: Ok, is there any class preference?

USER: No.

ASSISTANT: Do you have any airline preference?

USER: No.

ASSISTANT: Do you have any specific depart and arrival timings?

USER: No, I don't have any other.

ASSISTANT: Can I know your name please?

USER: Sure, my name is Dorothy Harris.

ASSISTANT: Delta Airlines is providing direct flight with the ticket fare of 100 and depart time is 20:00, arrival time is 11:00. Shall I proceed?

USER: Yes, you can proceed with booking now.

ASSISTANT: Your ticket has been confirmed by flight number 1018 and an economy class.

USER: Thank you for your help.

ASSISTANT: Thanks for choosing us.

USER: Welcome.