You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you for today?

USER: My name is Rachel Williams, I want to book a flight ticket from IAH to MCO, can you help me?

ASSISTANT: I am here to help you about that. Can you please let me know your planned dates of journey?

USER: Thank you. My journey dates are Apr 11 and Apr 13.

ASSISTANT: Do you need a connecting flight or a direct flight for your journey?

USER: I need a connecting flight.

ASSISTANT: Do you have specific time for the departure and arrival for your journey?

USER: My return time is evening.

ASSISTANT: Sorry to say this Rachel Williams, there are no flights which travels on your route.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: You are welcome, thank you for reaching us.