You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you today?

USER: I need to book a flight ticket from HOU to IAH to enjoy film festivals. Can you help me in booking a connected flight?

ASSISTANT: Sure, may I know your class preference?

USER: I would prefer a economy class.

ASSISTANT: Ok, let me know your travel dates?

USER: Sure, my journey dates are Oct 18 and Oct 20.

ASSISTANT: Do you have any other requirements?

USER: I am looking for a  depart time at evening.

ASSISTANT: Do you have any connection limit?

USER: Already shared above.

ASSISTANT: Can you share your name please?

USER: Sure, Katherine Lee here.

ASSISTANT: Sorry, no flights as per your request.

USER: Ok, no issues. Thank you for your assistance.

ASSISTANT: Thank you for contacting us.