You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Is this flight ticket booking agency?

ASSISTANT: Yes, you are at right place. How may I assist you today?

USER: I want to go Houston, for enjoying my summer holidays there, can you please help me in booking flight ticket form Atlanta.

ASSISTANT: Sure, I will help you on that.

USER: Thanks.

ASSISTANT: Could your please provide your destination airport code and departure date?

USER: My destination airport is HOU and departure date is 05/29.

ASSISTANT: Do you want me to book a return ticket also?

USER: Yes, please book my return ticket to ATL on 05/31.

ASSISTANT: Ok, please hold on a moment to check the availability of flights and I will revert to you.

USER: Ok.

ASSISTANT: According to your information, I have found a flight for you and details are follows. Sorry for the information, there are no flight found with your requested dates of travelling.

USER: It's ok no problem, I will go with another airline. Thank you for your information.

ASSISTANT: For documentation purpose, may I know your name please?

USER: Sure, my name is Timothy Mitchell.

ASSISTANT: Thank you Timothy, have a great day.

USER: Welcome.