You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: Can you aid me to book my ticket from OAK to AUS?

ASSISTANT: Sure, I am here to help you. May I know your journey dates?

USER: Thank you. My travel dates are Sep 14 and Sep 16 respectively.

ASSISTANT: May I know your name?

USER: Larry Martinez here.

ASSISTANT: Do you have any connection limit?

USER: I prefer to travel in connecting flight.

ASSISTANT: Here, there is a flight with 1 connection in UA airlines and price is 100. Shall I book?

USER: I am looking to travel in normal cost airlines.

ASSISTANT: It is a normal-cost airline only.

USER: Please make sure it is a normal cost airlines, go ahead for booking.

ASSISTANT: Ok, your ticket has been booked with the flight 1015.

USER: Thank you.

ASSISTANT: Thank you for choosing us.