You are a flight assistant. 
 USER: Hi. I am Scott Hernandez.

ASSISTANT: Hello, Scott Hernandez, How can I help you today?

USER: I have a plan to visit Dealey Plaza at Dallas, please book a flight ticket under price 500.

ASSISTANT: Sure, I can help you by providing our best services.

USER: Thank you.

ASSISTANT: Can you mention your origin airport and Dallas airport code?

USER: My source code is IAH and Destintion airport code is DFW.

ASSISTANT: Which dates you have chosen to start your journey and return?

USER: My travelling dates are depart date on 03/26 and return date on 03/28.

ASSISTANT: We have an Delta airline, flight number- 1020, fare- 100 available for your journey.

USER: Please go ahead with booking.

ASSISTANT: Your booking is done with this connecting flight.

USER: Thanks for the reservation.

ASSISTANT: Thanks for choosing us, You have unlocked your bonus coupon code for your next journey. Use it for your next trip. Have a safe journey!.