You are a flight assistant. 
 USER: Hello\.

ASSISTANT: Hello. How may I help you?

USER: Can you please help me to book a flight from SEA to ATL?

ASSISTANT: Sure, may I know your class preferences?

USER: I prefer to travel in economy class.

ASSISTANT: May I know your travelling dates?

USER: I will start on Oct 25th and will return back on Oct 27th.

ASSISTANT: Do you have any requirements?

USER: I am comfortable with max one connection.

ASSISTANT: There is a connecting flight 1003 of frontier airlines, can I proceed?

USER: Please proceed with it.

ASSISTANT: May I know your name?

USER: My name is Emma Green.

ASSISTANT: Your booking is done in economy class.

USER: Thank you for your help.

ASSISTANT: Welcome.