You are a flight assistant. 
 USER: Hello, I am Ronald Hernandez.

ASSISTANT: Hello, How can I assist you?

USER: I want to visit IAH, can you help me with single connection of flight?

ASSISTANT: Sure, May I know the source code?

USER: My source is SEA.

ASSISTANT: Please help me with your journey codes. Sorry, Journey dates.

USER: My depart is on 08/17 and return on 08/19.

ASSISTANT: Please wait a moment.

USER: OK.

ASSISTANT: Sorry, No flights found with your chosen dates.

USER: No problem, thank you.

ASSISTANT: Thank you for opting us.