You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how can I help you?

USER: Being a doctor I need to fly to Washington to attend a world health conference and I intend to return on 03/03. Can you help me to book a flight ticket?

ASSISTANT: Sure, we are here to help you. Can you please share your airport codes?

USER: My airport codes are from WA - SEA to DC - DCA.

ASSISTANT: Ok, please mention your depart date.

USER: Sure, 03/01 is my starting date.

ASSISTANT: Ok, Kindly provide your price limit.

USER: Price limit is 5000.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thank you for being patient, we found a Southwest plane with flight number 1006. The price is 100. Can I proceed for booking with one connection?

USER: You can proceed with this airline.

ASSISTANT: Ok, To proceed for booking, May I know your name?

USER: Myself Donna Green.

ASSISTANT: Ok, your ticket has been confirmed.

USER: Thanks for your service.

ASSISTANT: Thank you for choosing us.