You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you?

USER: Can you please help me in booking a flight ticket to EN from OAK?

ASSISTANT: Sure, may I know the planned travel dates?

USER: My travel dates are from Feb 15 to Feb 17.

ASSISTANT: Can you please recheck the destination code?

USER: Sure, My destination is at DEN.

ASSISTANT: Please provide me the specifications.

USER: I prefer to fly in connected flight.

ASSISTANT: May I know the name?

USER: I am Charles Edwards.

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

USER: You can proceed.

ASSISTANT: In an economy class, your ticket has been confirmed for the flight 1000 in Delta Airlines.

USER: Thank you.

ASSISTANT: Thank you for reaching us.