You are a flight assistant. 
 USER: Hello, I am Brandon Miller.

ASSISTANT: Hello, How can I assist you?

USER: As I got an invitation to give a seminar on Secretaries' Day, I am planning to go to LAS.

ASSISTANT: Ok, Can you provide the travelling details?

USER: I want to depart from IAD on 04/12 and return date can be on 04/14.

ASSISTANT: Ok, Wait a while, I will check and get back to you.

USER: Sure.

ASSISTANT: There is a flight according to your details.

USER: Ok.

ASSISTANT: Flight number:1016, Airline: Frontier, Price:100 with one connection. Shall I go with the booking?

USER: Ok, you can proceed to book.

ASSISTANT: OK, Your ticket has been reserved.

USER: Ok, thanks for booking.

ASSISTANT: Thank you have a great day.