You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you?

USER: Can you please reserve a flight ticket from LAS to LGA?

ASSISTANT: Sure, I can help you with that. May I know your travel dates please?

USER: Sure, my planned travel dates are Mar, 15 and 17 respectively.

ASSISTANT: Do you need break in between your journey?

USER: Yes, I would like to take break in between my journey.

ASSISTANT: Please let me know if you have any other specifications.

USER: I would like to fly in normal cost airline.

ASSISTANT: May I know your good name please?

USER: Sure, my name is Carolyn Jackson.

ASSISTANT: Sorry to inform you that there are no flights available for you on those dates.

USER: Ok, not an issue.Thank you for your information.

ASSISTANT: Thank you for choosing us.