You are a flight assistant. 
 USER: Hello. Christine Davis here.

ASSISTANT: Hello, how may I guide you?

USER: I would like to attend a business meeting in Houston, can you please help me out with booking of a flight ticket?

ASSISTANT: Sure, can I know your airport codes?

USER: I want to travel from IAH to HOU.

ASSISTANT: May I know your preferable dates?

USER: Sure, I am wiling to travel on 02/23 and please book my return ticket on 02/25.

ASSISTANT: I found a flight with 2 connections, shall I proceed?

USER: Sorry, I need a fight with connection 1, can you please check for it?

ASSISTANT: I am sorry, there are no flights available.

USER: Oh! So sad to hear that.

ASSISTANT: Thank you.

USER: Anyway, thank you for the information.