You are a flight assistant. 
 USER: Hi. I am Kenneth Clark.

ASSISTANT: Hello, how may I serve you?

USER: I want to book a  connecting flight ticket to attend an event. Can you help me with this booking?

ASSISTANT: Sure, may I know when are you planning to travel?

USER: Thank you. 07/27 and 07/29  are my travelling dates.

ASSISTANT: Kindly provide me your airport codes as well.

USER: SEA and DCA are my airport codes.

ASSISTANT: Ok, please give me a moment.

USER: Ok.

ASSISTANT: Delta airline is providing a flight 1000 on your route and the airfare is 100.

USER: You can reserve it.

ASSISTANT: Your booking has been confirmed.

USER: Thank you.

ASSISTANT: Thank you for choosing us.