You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Karen Walker here.

ASSISTANT: How can I assist you today?

USER: I want to book a flight on the route from DFW - DEN to meet my family after six months, can you help me?

ASSISTANT: Sure, can you please share your travel dates?

USER: I will be travelling from 05/20 to 05/22 for my journey.

ASSISTANT: Ok, let me check for the availability of flight.

USER: Ok, sure.

ASSISTANT: Karen, there is a flight available with price 100 and the connection is 1 with AA airline. Would you like me to proceed with the booking?

USER: Ok, please book a reservation by my name.

ASSISTANT: Your booking is confirmed with 1019 flight number.

USER: Thank you for helping me with booking tickets.

ASSISTANT: You are welcome. Thank you for opting us.

USER: Welcome.