You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Can you please book a ticket from DCA to JFK to meet my sister?

ASSISTANT: Yes, I will definitely try my best to help you in booking your flight ticket. Could you please provide your planned dates of journey?

USER: My journey dates are Mar 10 and Mar 12.

ASSISTANT: Would you like to travel in a connecting flight or a direct flight?

USER: I would like to fly in direct flight.

ASSISTANT: Is there any other preferences that you would like to add before booking?

USER: No.

ASSISTANT: To proceed  further, can I have your name please?

USER: I am Ronald Rodriguez.

ASSISTANT: Thank you for providing your journey details, please wait a moment I'll search best flight for you.

USER: Ok.

ASSISTANT: Thank you for being patient, we didn't find any flights which matches your requirement.

USER: Ok, no issues.

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

USER: Thank you.