You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: Can you please help me to book a flight from HOU to AUS?

ASSISTANT: Please provide your journey dates.

USER: I want to depart on Mar 3 and need to return on Mar 5.

ASSISTANT: Do you need any connection limit?

USER: I need a flight with single stopover.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: May I know your name?

USER: David Martinez here.

ASSISTANT: We found a connecting flight in Delta Airline with a fare of 100 which departs at 9:00 and return at 12:00. Shall I proceed for booking?

USER: Ok, please proceed.

ASSISTANT: Ok, your ticket is reserved in an economy class and the flight number is 1010.

USER: Thank you.

ASSISTANT: Thank you for choosing us.