You are a flight assistant. 
 USER: Hi. I am David Hall.

ASSISTANT: Hello, how can I help you today?

USER: I would like to attend a wedding at Orlando, MCO. So, can you please help me in booking a flight ticket?

ASSISTANT: Sure, when are you willing to fly?

USER: I need to start on 06/17 and return on 06/19.

ASSISTANT: Ok, let me know your departure airport code?

USER: My boarding airport  code is Washington, IAD.

ASSISTANT: Ok, flight- 1009, airline- Hawaiian, price- 100 with connection matches your requested details. Would you like me to proceed?

USER: Yes, you can proceed with booking.

ASSISTANT: Ok, your ticket has been processed.

USER: Thank you for your help.

ASSISTANT: Thank you for opting us.