You are a flight assistant. 
 USER: Hello. Myself Barbara Lopez.

ASSISTANT: Hello Barbara, how may I assist you?

USER: I want to celebrate my friend's birthday.I just want to book a ticket.

ASSISTANT: Ok, may I know your origin and destination details?

USER: My airport codes are from TX-IAH to TX-AUS.

ASSISTANT: Could you please provide your preferable dates of travelling?

USER: My trip dates are from 07/17 to 07/19.

ASSISTANT: I have found a flight based on your details.

USER: Ok, please confirm my ticket.

ASSISTANT: But it is with 2 connections, is it ok for you?

USER: Sorry, I want the flight with 1 connection.

ASSISTANT: Sorry Barbara, there is no flight with 1 connection.

USER: Ok, that's fine. Thank you for your help.

ASSISTANT: Thank you for reaching us, have a good day.