You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I be your helping hand today?

USER: I am Melissa Scott, I want to book a flight on 10/13 and return ticket on 10/15. Can you book a connecting flight for me?

ASSISTANT: Sure, I am here to aid you. Could you please help me with your airport codes?

USER: I will fly from TX-AUS to AZ-PHX.

ASSISTANT: Ok, wait for a while to check the availability of flights.

USER: Sure.

ASSISTANT: Thanks for your time, the 1004 connecting flight is exactly matching your schedule with a fare of 100.

USER: Please proceed with booking.

ASSISTANT: Ok, I have booked your ticket in Frontier airline.

USER: Thank you for booking my ticket.

ASSISTANT: Thank you for choosing us.