You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Samuel King.

ASSISTANT: How can I help you King?

USER: I am planning to book a ticket with 0 connection. Can you please help me out?

ASSISTANT: Ok, please share your journey dates.

USER: My travelling dates are 05/27 and return back on 05/29.

ASSISTANT: Please mention your airport codes.

USER: My airport codes are ORD to IAH.

ASSISTANT: Please wait. Sorry King, no direct flight is available for you.

USER: That's fine, thank you for your help.

ASSISTANT: Welcome, have a good day.