You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, welcome to our agency.

USER: My name is Stephanie Carter.

ASSISTANT: Carter, how can I assist you at this moment?

USER: I love handmade jewellery and would like to buy some special bangles at Renwick Gallery in Washington. Please help me in booking a ticket.

ASSISTANT: I am glad to help you Carter. Please provide me your preferred airport codes of journey.

USER: My preferred source and destination airport codes are LGA and DCA.

ASSISTANT: May I know when are you planning your journey?

USER: I would like to plan my journey on 09/09 and return on 09/11.

ASSISTANT: Please wait for a minute.

USER: Ok, please find a direct flight.

ASSISTANT: JetBlue airlines is providing service on your route with price 200 matching with your preferences. Shall I book the ticket for you?

USER: Is this a business class ticket?

ASSISTANT: All the business class tickets are sold out. So, I searched for economy class ticket. Are you comfortable with economy class ticket?

USER: Yes, I am comfortable with economy class. Please book the ticket.

ASSISTANT: Your ticket is confirmed and the flight number is 1006.

USER: Thank you for your assistance in booking my ticket.

ASSISTANT: Thank you for utilising our services.