You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I am Samuel Clark want to visit Detroit, can you book a ticket from OAK to DTW?

ASSISTANT: Sure, may I know your journey dates please?

USER: Yes, my travelling dates will be 02/04 and 02/06.

ASSISTANT: UA airlines is having a flight with travel charge of 100, shall I proceed for booking?

USER: Yes, proceed with my booking.

ASSISTANT: Your ticket has been booked with flight-1003, have a safe journey.

USER: Thank you.

ASSISTANT: Thank you for choosing us.