You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Patrick Hernandez. Can you please make my reservation from DCA to LAS?

ASSISTANT: Sure, I am here to assist you. Please let me know your travel dates.

USER: Sure, my travel dates are Dec 10 and Dec 12.

ASSISTANT: Ok, please wait for a while.

USER: Sure, I will wait for your response.

ASSISTANT: There is a direct flight available in Delta airlines and the ticket fare is 200 only. Is that ok for you?

USER: Ok, please book.

ASSISTANT: Your ticket is booked in economy class with flight-1001.

USER: Thank you for your help.

ASSISTANT: You are welcome and thank you for reaching us.