You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

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

ASSISTANT: Sure, may I know your planned travel dates please?

USER: I will be travelling on 20th and 22nd of March.

ASSISTANT: Do you have any class preference?

USER: No.

ASSISTANT: Would you like to travel in a connecting flight or a direct flight?

USER: I am fine with maximum one connection.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: May I know your good name please?

USER: My name is Debra Anderson.

ASSISTANT: There is a flight available on your requested dates from United airlines with arrival time 19 PM and depart time 15 PM, shall I confirm your booking?

USER: Please go ahead.

ASSISTANT: Your ticket is booked with flight 1021.

USER: Thank you for your help.

ASSISTANT: You are welcome.