You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Ronald Miller from Washington.

ASSISTANT: How may I help you?

USER: I am planning to start a new Jewellery shop in Phoenix, can you help me in booking a flight ticket from DC - IAD to AZ - PHX?

ASSISTANT: Sure, can I know your preferable dates?

USER: My departure day is 02/23, return day is 02/25.

ASSISTANT: We found a flight from Southwest airline with 1 connection and fare is 100. Shall I proceed?

USER: You can proceed to booking.

ASSISTANT: Your ticket is booked and flight number is 1005.

USER: Thank you.

ASSISTANT: Thank you for reaching us.