You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I oblige you today?

USER: I am Mark Carter. Can you please book a flight ticket from ATL to SFO?

ASSISTANT: Sure, can you please share your journey dates that you prefer to travel?

USER: Sure, I have planned to travel on the dates of Nov 14 and Nov 16.

ASSISTANT: Do you require any specifications in your journey?

USER: Yes, I would like to depart in the morning time only.

ASSISTANT: There is a connected flight in Spirit airlines with the fare 100 in the afternoon.

USER: That is fine, please proceed with booking.

ASSISTANT: Your booking is done.

USER: Thank you for your help.

ASSISTANT: Thank you.

USER: Most welcome.