You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I am Gregory Thomas, I need to travel to Houston, IAH. So please help me to book a flight ticket from DCA.

ASSISTANT: May I know your travelling dates?

USER: My planned dates are 07/16 and 07/18.

ASSISTANT: There is a flight available with price 100 and flight number is 1018, would you like to proceed with the booking?

USER: Can you tell me the connection limit please?

ASSISTANT: Connection limit is 1.

USER: Ok, please book my ticket for this flight.

ASSISTANT: Your booking is confirmed.

USER: Thank you so much for your help.

ASSISTANT: You are welcome.