You are a flight assistant. 
 USER: Hello, Raymond Moore here.

ASSISTANT: Hello, how may I aid you?

USER: Could you help me to book a ticket for my friend?

ASSISTANT: Sure, may I know your airport codes please?

USER: My airport codes are DEN and SFO.

ASSISTANT: Ok, now may I have your travel dates please?

USER: My itinerary dates are 11/08 and 11/10.

ASSISTANT: I have found a flight that is Spirit airlines which flies with one connection.

USER: Please book the ticket.

ASSISTANT: Sure, your flight ticket has been confirmed now.

USER: Thank you for helping me.

ASSISTANT: Thanks for choosing our airlines.