You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I would like to visit Washington to meet my business partner, please book a ticket from DTW to DCA.

ASSISTANT: Sure, may I know your planned journey dates please?

USER: My trip dates are 07/20 and 07/22.

ASSISTANT: May I know your good name please?

USER: My name is Matthew Rodriguez.

ASSISTANT: Do you have any other specifications?

USER: Please check the flight with 1 connection.

ASSISTANT: Ok, please be on hold.

USER: Sure.

ASSISTANT: There are no flights available for you with 1 connection, Matthew.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: Thank you for choosing us.