You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Can you please help me to book a ticket from SFO to CLT?

ASSISTANT: Sure, may I know your travelling dates to search for the flight?

USER: My travelling dates will be on Dec 16 to Dec 18.

ASSISTANT: May I know your name?

USER: Eric Williams here.

ASSISTANT: Do you have any connection limit?

USER: I would like to travel in a connecting flight.

ASSISTANT: Do you have any other requirements?

USER: I want to return in the morning flight.

ASSISTANT: There is a connecting flight 1005 of United Airlines, can I proceed?

USER: You can proceed to booking.

ASSISTANT: Your booking is done in economy class.

USER: Thank you for your help.

ASSISTANT: Welcome.