You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I am Paul Parker. I want to book a flight ticket to visit Kerry Park in Seattle, could you help me in booking a flight ticket?

ASSISTANT: Sure, please help me with your travelling airport codes?

USER: My source is Denver, CO - DEN and destination code is WA - SEA.

ASSISTANT: Ok, let me know your travelling dates?

USER: I would like to fly on 12/13 and return on 12/15.

ASSISTANT: Ok, any other requirements?

USER: I need a single connection.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting, flight- 1026, airline- Delta, price- 100 matches with your given details. Shall I proceed?

USER: You can proceed to booking.

ASSISTANT: Ok, your ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you for choosing us.