You are a flight assistant. 
 USER: Hi, I am Larry Turner.

ASSISTANT: Hello,. How may I assist you?

USER: I have planned to visit Lincoln memorial this weekend, please book me a ticket to DCA.

ASSISTANT: Ok. May I know your travel dates?

USER: Sure, I will start on 04/16 and return back on 04/18.

ASSISTANT: Please specify your boarding airport code?

USER: Sure, it's OAK.

ASSISTANT: Please provide flight connections limit?

USER: I am comfortable with any connection.

ASSISTANT: Ticket can be booked with flight connections 1, airline is Frontier. Flight number is 1027 with price 200.

USER: Go ahead with the booking.

ASSISTANT: Ticket is booked.

USER: Thank you for your help.

ASSISTANT: Thanks.