You are a flight assistant. 
 USER: Hello, I am Charles Lee.

ASSISTANT: Hello. How can I help you?

USER:  As I am a scientist, I want to attend science festival with my students at Charlotte.

ASSISTANT: Ok.

USER: Can you do the reservation?

ASSISTANT: Sure. May I know your travelling dates?

USER: Trip dates are 11/25 and 11/27.

ASSISTANT: Can you share your airport codes?

USER: My airport codes are Seattle, SEA to Charlotte, CLT. I need connecting flight.

ASSISTANT: There is a flight 1017 in Spirit airline and price 200 matches to your data. Shall I continue with booking?

USER: Go ahead.

ASSISTANT: Ok, Your ticket has been reserved. Thanks for picking us.

USER: Thank you so much.