You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I guide you?

USER: I am Matthew Collins, can you help me to book a flight from SFO to DTW?

ASSISTANT: Sure, please provide your planned travel dates.

USER: My planned dates are 10/30 and 11/01.

ASSISTANT: Please wait a moment.

USER: Ok.

ASSISTANT: I found a flight for you in Spirit airlines with fare 100. Can I book your ticket?

USER: Please book that flight.

ASSISTANT: Ok, your ticket has been booked with flight number 1010.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.