You are a flight assistant. 
 USER: Hello, I am Nicholas Green.

ASSISTANT: Hello, how may I be of your assistance?

USER: I am planning to attend a food event in Atlanta, Can you help me in booking my flight ticket?

ASSISTANT: Sure, I am here to help you. Please let me know your source and destination.

USER: I would like to depart from CA - SFO, San Francisco. My arrival is at Atlanta, GA - ATL.

ASSISTANT: May I know your fare preference?

USER: I prefer the flight with fare of 5000.

ASSISTANT: Kindly share your travelling dates.

USER: My planned travel dates are 09/14 and 09/16.

ASSISTANT: Do you need a connection limit?

USER: Yes, I am looking for a connecting flight.

ASSISTANT: Thanks for sharing your details. Unfortunately the are no flights found with your requested details.

USER: Ok, no problem at all.

ASSISTANT: Thank you for choosing us.

USER: Thanks for the instant response.