You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Kenneth Walker.

ASSISTANT: Walker, how can I assist you?

USER: Can you please help me in flight ticket from IAD to IAD?

ASSISTANT: Sure, please share your trip dates.

USER: Sure, I would like to board on 08/05 and arrival back on 08/07.

ASSISTANT: Let me check for a best flight.

USER: Sure.

ASSISTANT: Spirit airlines with flight 1021 is available.

USER: Yes, do proceed.

ASSISTANT: Your ticket is confirmed.

USER: Thank you.

ASSISTANT: Thank you for approaching us.