You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I guide you for today?

USER: I would like to book a flight ticket from JFK to HOU, can you help me with that?

ASSISTANT: Can you please share on what dates you are willing to travel?

USER: My travel dates are 05/19 and 05/21.

ASSISTANT: Are you looking for a connecting flight or direct flight?

USER: I need a connecting flight.

ASSISTANT: Do you have any class preferences?

USER: I need economy class.

ASSISTANT: Do you have any other requirements that you are looking for?

USER: No.

ASSISTANT: Can you please provide your name to proceed further?

USER: I am Nicole Evans.

ASSISTANT: Sorry, there are no flights available at your request.

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

ASSISTANT: Thank you for contacting us, have a nice day.