You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: My name is Janet Parker. I want to book a flight to IAH. Can you help me with it?

ASSISTANT: Sure, can you please tell me your travelling dates?

USER: My preferred travelling date are 11/01 and 11/03 respectively.

ASSISTANT: Sorry, no flights found as per your requested dates.

USER: It's ok, thank you.

ASSISTANT: Thank you for approaching us.