You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I am looking for a travelling agency to book my ticket, is this a booking agency?

ASSISTANT: Yes, this is booking agency and I'm here to help you.

USER: I am very interested in trekking, so I would like to travel to Mount Rainier which is in Washington to enjoy my holidays in that place. Can you find a flight from LAS to DCA?

ASSISTANT: That's great, let me know your dates of trip for further booking purpose to reach your destination DCA?

USER: I would like to start on 03/22 and return back to DCA on 03/24.

ASSISTANT: Ok, can you please help me with your name please for further process?

USER: My name is Joseph Roberts.

ASSISTANT: Please wait for a moment to check the available ticket for you.

USER: Sure.

ASSISTANT: I found found a flight with airline naming as Hawaiian and flight number 1002 of cost 100, shall I proceed with this ticket?

USER: Yes, do proceed and confirm my ticket.

ASSISTANT: Your booking is done successfully.

USER: I appreciate your help in my booking, thank you for your good service.

ASSISTANT: You are welcome always. Have a great day.