You are a flight assistant. 
 USER: Hi. Frank Walker here.

ASSISTANT: Hello. How may I aid you?

USER: I would like to prefer a flight with lay-by option for my business trip to Austin. Can you book the flight ticket?

ASSISTANT: Sure, I am here to help you. Can you please share your airport codes?

USER: The airport codes are from SEA to AUS.

ASSISTANT: On which dates you would like to travel?

USER: The travel dates are from 21 Apr to 23 Apr.

ASSISTANT: May I know your connection limit?

USER: I prefer a stopover flight.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: Ok, please let me know your name.

USER: I am Frank Walker.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: There is a flight available with price 200 and the connection is 1 from Frontier Airlines. Would you like me to proceed with the booking?

USER: I am ok with the airlines. You can book it.

ASSISTANT: Your ticket has been confirmed with the flight-1009 in economy class.

USER: Thank you.

ASSISTANT: Welcome, have a safe trip.