You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am Joshua Lopez here. I want to book a ticket From IAH to AUS ?

ASSISTANT: Sure I will help you with that. May I know your airline preference please?

USER: I am looking for normal cost airlines.

ASSISTANT: Your travel dates please?

USER: my travel dates are Nov 18 and Nov 20 respectively.

ASSISTANT: May I know your name please?

USER:  Joshua Lopez.

ASSISTANT: Do you have any other preferences?

USER: Make sure that is connection limit is 1.

ASSISTANT: Thanks for your time.

USER: Welcome.

ASSISTANT: Under normal-cost airline we have found Delta airlines with one connection.

USER: Please go ahead for booking.

ASSISTANT: I have confirmed your flight ticket. Thank you.

USER: Thanks for information.