You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I serve you?

USER: I need your help to book a flight from LAX to IAD.

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

USER: Sure, I want to travel on July 2 and intend to return on July 4.

ASSISTANT: Ok, is there any class preference?

USER: No.

ASSISTANT: May I know your connection limit?

USER: I am looking for a flight with single connection.

ASSISTANT: Do you have any airline preference?

USER: No.

ASSISTANT: Do you have any specific concern?

USER: No.

ASSISTANT: Can I know your name please?

USER: Lisa Harris here.

ASSISTANT: Southwest Airlines is providing connecting flight with the ticket fare of 100 and depart time is 03:00, arrival time is 16:00. Shall I proceed?

USER: Ok, please proceed.

ASSISTANT: Your ticket has been confirmed by flight number 1001 and an economy class.

USER: Thank you.

ASSISTANT: Thanks for choosing us.