You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I am Kevin Williams, want to visit Detroit, MI - DTW. Please help me in booking my ticket from DFW.

ASSISTANT: Ok Kevin, please provide me your preferred journey dates.

USER: My preferable journey dates are from 07/18 to 07/20.

ASSISTANT: Please give me a minute.

USER: Sure, take your time.

ASSISTANT: I found a flight in Frontier airlines with price 100. Shall I book the ticket for you?

USER: Yes, please book this ticket for me.

ASSISTANT: Your ticket is confirmed and the flight number is 1006.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us, have a safe journey.