You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I guide you?

USER: I am Stephanie Hernandez. I am planning trip from LGA to LAS for my business meeting, can you help in booking flight ticket?

ASSISTANT: Sure, could you please provide your travelling dates?

USER: My date of planning is on 04/1 to 04/03.

ASSISTANT: Unfortunately, there is no flights as per your request.

USER: That's ok. Thank you for your information.

ASSISTANT: Thank you for approaching us.