You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how may I address you at this time?

USER: Please book a ticket from Washington DC-IAD to Austin, TX-AUS.

ASSISTANT: Sure, may I know your trip dates?

USER: 02/19 to 02/21 are my travel dates.

ASSISTANT: Do you have any other specifications?

USER: Price limit 5000. Connections limit 1.

ASSISTANT: As per your request, you have a flight with single connection at a price 100 in flight 1025. Are you comfortable with Delta airline?

USER: Please book a ticket.

ASSISTANT: I need your name to proceed further.

USER: I am Patrick Jones.

ASSISTANT: Your booking has been confirmed.

USER: Thanks.

ASSISTANT: Thank you for availing us.