You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I guide you for today?

USER: I am Frank Rodriguez, please book me a ticket from LAS to IAD to meet my family.

ASSISTANT: Can you please share on what dates you are willing to travel?

USER: I have planned to travel on 12/01 and 12/03.

ASSISTANT: Do you have any class preferences?

USER: No, I am ok with any class.

ASSISTANT: Do you have any other requirements that you are looking for?

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

ASSISTANT: There is a flight with ticket fare 200 in UA airlines with a stopover. Is it ok for you?

USER: Ok, please book this ticket.

ASSISTANT: Your booking is confirmed with flight number 1012 in economy class.

USER: Thank you.

ASSISTANT: Thank you for contacting us, have a nice day.