You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello.

USER: I am Daniel Hernandez.

ASSISTANT: How may I provide assistance to you?

USER: I am planning to visit Top of the Rock observation deck in Washington DC - IAD. Can you avail me to book a flight with one halt?

ASSISTANT: Sure, could you please share me your budget for flight ticket?

USER: I can afford up to 1000.

ASSISTANT: May I know your origin point please?

USER: My origin is from Denver, CO - DEN.

ASSISTANT: When you are willing to travel?

USER: I want to travel on 02/09 and 02/11.

ASSISTANT: We are pleasure to inform you that there is a flight found with an airline Hawaiian of flight 1015 and fare is 100.

USER: I am comfortable with this  Hawaiian airline, Please proceed.

ASSISTANT: Your seat has been confirmed.

USER: Thanks for your kind service.

ASSISTANT: Thank you for opting us.