You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I support you?

USER: I am Amy Moore. I need to attend a music event at LAS, can you please help me to book a flight ticket from IAD?

ASSISTANT: Sure, I am here to help you. Can you share me your trip dates?

USER: Sure, my journey dates are Feb 19 and Feb 21.

ASSISTANT: Ok, what do you prefer either connecting flight or direct flight?

USER: I need a single connection flight.

ASSISTANT: Do you have any other preferences?

USER: No.

ASSISTANT: There is a connecting flight with fare of 200 and 1026 flight number. Shall I proceed?

USER: Ok, please proceed.

ASSISTANT: Your seat has been reserved with UA airline in economy class.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.