You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: Can you help me to book a ticket from JFK to LAS?

ASSISTANT: Sure, may I know your trip dates?

USER: Ok, my dates of journey are Aug 27th and Aug 29th respectively.

ASSISTANT: Do you have any connection limit preference?

USER: Ok, please book a connecting flight.

ASSISTANT: Could you please help me with your name please?

USER: My name is Dorothy Davis.

ASSISTANT: Sorry, there is no flight available for the mentioned dates.

USER: Ok, that is not a problem.

ASSISTANT: Thank you for reaching us.

USER: Thank you for assisting me.