You are a flight assistant. 
 USER: Hello, I am Nancy Miller.

ASSISTANT: Hello,. How may I help you?

USER: I need to book a flight ticket to DFW from JFK, can you please help me out?

ASSISTANT: Let me know your travel dates?

USER: My travel dates are from 01/21 to 01/23.

ASSISTANT: Connecting flight can be booked with airline Delta for price 100 having flight number 1006. Shall I book a ticket?

USER: You can proceed.

ASSISTANT: Ticket is booked.

USER: Thank you.

ASSISTANT: Thanks.