You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Kenneth Hall.

ASSISTANT: What can I do for you?

USER: I am planning to book a ticket from DCA to PHX.Can you please book a ticket for me?

ASSISTANT: May I know your travel dates please?

USER: I would like to travel on 11/10 to 11/12.

ASSISTANT: Ok, please wait a moment.

USER: Make sure my connection limit is 1. Sure.

ASSISTANT: Hall, no flights have been found on your requested dates.

USER: That's fine. Thank you for your help.

ASSISTANT: Thank you for choosing us.