You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I be your helping hand today?

USER: I want to travel from LAS to LGA for my business meeting, can you please help me out with that?

ASSISTANT: Sure, I am gleeful to assist you. Can you please let me know your travelling dates?

USER: Thank you for accepting my request, I am planning to take off on Nov 29 and please book my return ticket on Dec 01.

ASSISTANT: Do you prefer any lay by in between journey?

USER: I can manage with any connections.

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

USER: Sure, my name is Margaret Lopez.

ASSISTANT: Is there any another specifications on your trip, so that I can arrange like that only.

USER: I will prefer economy class for my journey. That's all my preferences.

ASSISTANT: Give me a minute, I will check and let you know the flight availability.

USER: Sure.

ASSISTANT: Thanks for waiting, there are no flights available at this moment matching your particulars.

USER: Oh! Sad to hear that. Anyway, I will find another alternative. Thank you for checking.

ASSISTANT: Thanks for reaching us, wish you a great day.

USER: Welcome.