You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I be of your help?

USER: I would like to travel to Houston for medical checkup to my step mother, please book a connecting flight ticket.

ASSISTANT: Sure, Please share me airport codes.

USER: My source code is TX- AUS and Destination code is TX- HOU. My destination airport code is IAH.

ASSISTANT: Ok, On which dates you wish yo travel ?

USER: My travelling dates  are from 07/26 to 07/28.

ASSISTANT: There is a flight with flight number 1014 with a connection which costs 200. Shall I proceed for booking with UA airline?

USER: Please go ahead.

ASSISTANT: Your ticket is reserved on your requested dates.

USER: Thank you for your quality response.

ASSISTANT: May I know your name please?

USER: I am Kathleen Allen.

ASSISTANT: Thanks for providing your name, have a good day.