You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I serve you?

USER: I want to book a flight from ORD to meet my friend at HOU. Can you help me with booking?

ASSISTANT: Sure, May I know the travelling dates?

USER: I will fly on Aug 01 and return on Aug 03.

ASSISTANT: Do you have any connection limit?

USER: I prefer a connecting flight.

ASSISTANT: Is there any other requirements?

USER: No.

ASSISTANT: May I know your name?

USER: May name is Kenneth Lee.

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

USER: Ok, thank you for the details.

ASSISTANT: Thank you for opting us.