You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you today?

USER: Please, help me in booking a ticket from PHX to DCA.

ASSISTANT: Sure, let me know your journey dates to check the availability of flights.

USER: Sure, my trip starts on Oct 16th and return on Oct 18th.

ASSISTANT: Do you require any connection limit?

USER: Yes, I need a connecting flight.

ASSISTANT: Ok, can I have your good name?

USER: I am Mark Brown.

ASSISTANT: Thanks for sharing your details, we found a direct flight. Shall I proceed to book?

USER: You can confirm my ticket.

ASSISTANT: Your ticket has been booked with United airlines, 1024 flight number.

USER: Thank you for quick response.

ASSISTANT: Thank you, Have a nice day.