You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Dennis Johnson.

ASSISTANT: How can I help you?

USER: I want a flight with 1 connection.

ASSISTANT: Sure, May I know your travelling dates?

USER: I want to exhibit my experiment at World of Coca-Cola, my journey dates are from 01/25 to 01/27.

ASSISTANT: May I know your airport abbreviates?

USER: My airport codes are from HOU to ATL.

ASSISTANT: Please wait for a while, I will check and get back to you.

USER: Ok, take your time.

ASSISTANT: Sorry to tell that there is a direct flight which matches your travelling details. Shall I proceed with booking?

USER: Ok, not a problem. I will try in another way.

ASSISTANT: Thank you for approaching us.

USER: Thank you for quick response.