You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: Could you please book a flight ticket from SFO to JFK?

ASSISTANT: May I know your travel dates?

USER: My travel dates are Nov 13 and Nov 15.

ASSISTANT: Do you prefer connecting flight?

USER: I need a connecting flight.

ASSISTANT: Do you have any other specifications?

USER: I want to depart in the morning. And I prefer a normal cost airline.

ASSISTANT: May I know your good name?

USER: I am James Hall.

ASSISTANT: Sorry, we found no flights on your travel dates.

USER: Not  a problem, thank you.

ASSISTANT: Thank you for reaching us.