You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Justin Clark.

ASSISTANT: How can I help you, Justin?

USER: Can you please help me in flight ticket booking from DCA to ORD to attend a meeting?

ASSISTANT: Sure, may I know your planned journey dates please?

USER: Thank you and I have planned my trip dates on 11/06 and back on 11/08.

ASSISTANT: Please give me a minute.

USER: Sure, I will wait for your response.

ASSISTANT: I found a flight in Hawaiian airlines with price 200. Shall I book the ticket for you?

USER: Yes, I am ok with the flight. Please proceed with booking.

ASSISTANT: Your ticket is confirmed and the flight number is 1023.

USER: Thank your help in my ticket booking.

ASSISTANT: Thank you for contacting us, have a safe journey.

USER: Welcome.