You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I oblige you today?

USER: I am Barbara Harris.

ASSISTANT: Ok.

USER: I am planning to conduct a beer festival at Washington. Can you help me in my booking?

ASSISTANT: Sure, we are willing to help you.

USER: Thank you.

ASSISTANT: Could you please provide your boarding point?

USER: My source airport code is Las Vegas, NV - LAS.

ASSISTANT: May I know your planned trip dates?

USER: I will start my journey on 06/26. I will return on 06/28.

ASSISTANT: Kindly mention Washington airport code.

USER: My destination is Washington, DC - IAD.

ASSISTANT: Ok, please wait for a minute.

USER: Sure.

ASSISTANT: Thank you for waiting, we found a connecting flight in Southwest airline with a fare 100. Shall I proceed?

USER: Yes, book my ticket.

ASSISTANT: Your booking has been confirmed with flight number 1007.

USER: Thank you for your help.

ASSISTANT: Thank you for opting us.