You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I provide assistance for you at this moment?

USER: Can you please help me to book a flight from LAS to MCO?

ASSISTANT: Sure, do you need a lay by in between the journey?

USER: Yes.

ASSISTANT:  Could you please share your planned travelling dates to proceed further?

USER: My travel dates are Apr 22nd and 24th.

ASSISTANT: Ok, may I know your good name please?

USER: My name is David Carter.

ASSISTANT: Ok, do you have any other specifications?

USER: No.

ASSISTANT: Ok, please wait for some time.

USER: Sure.

ASSISTANT: There are no flights found on your requested dates.

USER: No problem, I will find an alternative to travel. Thank you.

ASSISTANT: Thank you for reaching us.