You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Samuel Young. I am planning to visit Olympic National Park at Washington, could you please help me with booking a flight ticket from HOU to IAD?

ASSISTANT: Sure, may I know your trip dates please?

USER: I would like to take off on 09/03 and return on 09/05.

ASSISTANT: There is a flight which can travel to your region having a single lay out in between your journey having a ticket fare of 200 which is provided by Delta airlines. Would you like to book this flight for your journey?

USER: Please confirm the booking.

ASSISTANT: Ok, your ticket is booked.

USER: I really appreciate your help, thank you for your service.

ASSISTANT: Thank you for approaching us.