You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you today?

USER: Can you please book a flight ticket from PHX to DCA?

ASSISTANT: Sure, can I know your travel dates?

USER: My trip is in Nov from 4th to 6th.

ASSISTANT: Is there any connection limit?

USER: I prefer a connecting flight.

ASSISTANT: In which class would you like to travel?

USER: I am fine with any class.

ASSISTANT: May I know your name please?

USER: Sarah Miller here.

ASSISTANT: Thank you for sharing your journey details, please wait a moment.

USER: Please make sure that my return flight is in afternoon. Sure, take your time.

ASSISTANT: Ok. Sorry, there were no flights found on your route.

USER: That's ok, thank you for your information.

ASSISTANT: Thank you for approaching us.