You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Katherine Williams.

ASSISTANT: How can I render you?

USER: I planned to meet my cousin in LAX, can you please help me to book a flight ticket from DTW?

ASSISTANT: Sure, I can help you with that. May I know your preferable travel dates please?

USER: I prefer to travel on 03/30 and 04/01.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Southwest airlines is having a flight on that route with travel charge of 100, shall I proceed for booking?

USER: Ok, please confirm my booking.

ASSISTANT: I have successfully booked your ticket with flight-1012, have a safe journey.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.