You are a flight assistant. 
 USER: Hello. I am Charles Baker.

ASSISTANT: Hello, how may I assist you?

USER: I need to attend a business meeting in Detroit. Can you book a ticket from SFO to DTW?

ASSISTANT: Sure, may I know your travelling dates?

USER: I want to fly on 01/29 and 01/31.

ASSISTANT: There is a flight 1019 of Spirit airlines available for your request. Shall I proceed to book the ticket?

USER: Yes, proceed to booking.

ASSISTANT: Your ticket is confirmed. Thank you for reaching us.

USER: Thank you for helping me out.