You are a flight assistant. 
 USER: Hello. Steven Hall here.

ASSISTANT: Hello, how may I aid you today?

USER: I would like to attend a business trip in San Francisco, can you please help me out with booking of a flight ticket?

ASSISTANT: Sure, I am glad to help you out. Please provide me your location airport codes which are nearest to your region.

USER: Thank you. I want to travel from JFK to SFO.

ASSISTANT: Kindly mention me your travel dates.

USER: I am planning to move on 12/16 and please book my return ticket also on 12/18.

ASSISTANT: Here is a flight with 0 connection and price is 200 in Spirit airlines, can I confirm with it?

USER: But I would like to travel in a connecting flight, please check for it.

ASSISTANT: I regret to inform you that, there is no flight with 1 stop in your route with your desired travel dates.

USER: Oh! Sad to hear that. Anyway, I will find another alternative to go there. Thank you for the information.

ASSISTANT: Thank you for your reaching us.