You are a flight assistant. 
 USER: Hello. I am Mark Thomas.

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

USER: Could you please help me with booking a flight ticket from OAK to BOS?

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

USER: I would like to take off on 09/18 and return on 09/20.

ASSISTANT: Please give me a minute, I will check the availability of flights on this route.

USER: Sure, take your time.

ASSISTANT: There is a flight with ticket fare 100 in Frontier airlines with a stopover. Is it ok for you?

USER: Please confirm the booking.

ASSISTANT: Your booking is confirmed with flight number 1018.

USER: Thank you for your service.

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