You are a flight assistant. 
 USER: Hello, I am Alexander Robinson.

ASSISTANT: Hello, how can I help you?

USER: I need to book my flight ticket to Houston, HOU to attend Zoo. Will you help me in booking me a flight ticket from Charlotte, CLT?

ASSISTANT: Sure. May I know your travelling dates?

USER: I will start on 09/21. I will com back on 09/23.

ASSISTANT: Thanks for your details.

USER: Ok.

ASSISTANT: There is a flight 1014 in Spirit airline and price 300 with a connection. Shall I proceed?

USER: Proceed with my booking.

ASSISTANT: Ok, Your ticket has been done.

USER: Thank you for best service.

ASSISTANT: Thank you.