You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: Can you please book a ticket from DCA to JFK? As I'm planning to attend my cousin's wedding.

ASSISTANT: Sure, let me know your travelling dates?

USER: Sure, my planned departure and return travel dates are 8th and 10th of March.

ASSISTANT: Do you have any limits on number of connections?

USER: My maximum connection has to be 1.

ASSISTANT: Do you have any other specifications?

USER: No, I don't have any other specifications.

ASSISTANT: May I know your name?

USER: My name is Susan Roberts.

ASSISTANT: Sorry, there are no flights found based on your details.

USER: Oh! That's ok, thank you for giving the information.

ASSISTANT: Thank you for choosing us.