You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

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

ASSISTANT: Sure, may I know the planned travel dates to check for the flight availability?

USER: My planned travel dates are Dec, 28 and Dec, 30.

ASSISTANT: May I know the connection limit for this journey?

USER: I am looking for a connecting flight.

ASSISTANT: Please provide me the name.

USER: Shirley Martin here.

ASSISTANT: Do you have any other specifications to be met?

USER: No, thanks.

ASSISTANT: Here, I found a flight with 1 connection and airfare is about 100. Shall I proceed in booking?

USER: Please proceed.

ASSISTANT: In an economy class, your ticket has been confirmed for the flight 1019 in United Airlines.

USER: Thank you.

ASSISTANT: Thank you for reaching us.