You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I am planning to visit the Lincoln memorial which is located in Washington, IAD.

ASSISTANT: May I know your desired travel dates please?

USER: My travel dates are July 15 and 17.

ASSISTANT: May I know your source airport code please?

USER: My source is from Dallas & Fort Worth, DFW.

ASSISTANT: May I know your name please?

USER: Angela Harris here.

ASSISTANT: Do you any specification?

USER: I want to return in the afternoon time.

ASSISTANT: There is a flight with connection limit 1 and fare 100, shall I proceed for booking?

USER: Please proceed.

ASSISTANT: Your ticket is booked, flight number 1006 with Frontier Airlines.

USER: Thanks for the support.

ASSISTANT: Thank you for opting us.