You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Alexander Hill.

ASSISTANT: How can I assist you?

USER: Can you book a flight ticket from SFO to CLT?

ASSISTANT: Sure, we are mirthful to help you. May I know your travelling dates?

USER: My travelling dates are from Jan 12 to Jan 14.

ASSISTANT: Do you prefer any lay by in between journey?

USER: Yes, I need a connection in my journey.

ASSISTANT: Is there any airline preferences for you?

USER: No. I want to depart in the afternoon time.

ASSISTANT: Would you like to travel in economy class or business class?

USER: I am comfortable with any class.

ASSISTANT: Thanks for providing details, there is a connecting flight found in AA airline with a fare of 200 and the depart time is 16:00 PM. Is it ok for you?

USER: Ok, you can proceed.

ASSISTANT: Ok, your ticket is reserved in economy class and the flight number is 1004.

USER: Thank you.

ASSISTANT: Thank you for opting us.