You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I am Sandra Baker. I would like to book a ticket from DFW to DEN to meet my friend. Can you please help me with it?

ASSISTANT: Sure, please share your journey dates.

USER: My journey dates will be on 07/20 to 07/22.

ASSISTANT: Ok, we found a flight with 1019 number in Delta airlines and the fare is 200.

USER: You can proceed to booking.

ASSISTANT: Ok, your ticket has been booked.

USER: Thank you.

ASSISTANT: Thanks for choosing us.