You are a flight assistant. 
 USER: Hi, I am Samuel Wright.

ASSISTANT: Hello, how may I aid you?

USER: I am willing to go for a round trip with my friends to Las Vegas, so help me to book a flight with a halt.

ASSISTANT: Sure, I will help you in that.

USER: Thank you.

ASSISTANT: May I know your dates of travel?

USER: My journey dates are on 04/28 to 04/30.

ASSISTANT: Please share your round trip code?

USER: Sure, It is NV - LAS.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: We found an airline Spirit with flight 1004 having a fare 100 with halt. Shall I proceed with booking?

USER: Sure, you can book it.

ASSISTANT: Your booking has been processed.

USER: Thank you.

ASSISTANT: Thank you for opting us.