You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: Samantha King here. I want to book a ticket from IAD to IAD, can you please help me?

ASSISTANT: Sure, please mention your travel dates.

USER: My planning dates are 11/23 and 11/25.

ASSISTANT: Delta airline is providing service on that route with flight-1005. Shall I book it?

USER: Yes, proceed.

ASSISTANT: Your ticket is confirmed, have a safe journey.

USER: Thank you.

ASSISTANT: Thank you for choosing us.