You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Raymond Jones. I want to travel on these days that is on 07/21 and return on 07/23. Can you make a reservation for me?

ASSISTANT: Sure, may I know your planned travel dates please? Can you please share your source and destination airport codes?

USER: Sure, my airfield locations are from JFK to SFO.

ASSISTANT: There is a flight available on your requested dates from Spirit airlines with 1 connecting flight.Shall I confirm your booking?

USER: I want a direct flight please can you check?

ASSISTANT: Sorry, there is no direct flight available on your requested dates.

USER: Ok, no problem. Thank you for your help.

ASSISTANT: You are welcome.