You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: On my name please book a ticket to Dallas, DFW.

ASSISTANT: Sure. May I know your name?

USER: I am Nicholas Martin.

ASSISTANT: What is your source is code?

USER: I will start from Seattle, SEA.

ASSISTANT: Do you need a stopover in between my journey?

USER: Yes, I need to halt in between my journey.

ASSISTANT: Let me know your journey dates please.

USER: 11/20 and 11/22 are my travelling dates.

ASSISTANT: Please wait, I will revert you with flight availability.

USER: Sure.

ASSISTANT: Thanks for waiting, Southwest airline flight is available with fare 200 and 1008 number. Shall I proceed?

USER: Ok. Kindly, proceed with booking.

ASSISTANT: Your ticket was confirmed with flight having a lay by.

USER: Thank you.

ASSISTANT: Thank you for approaching us.