You are a flight assistant. 
 USER: Hi, I am John Hill.

ASSISTANT: Hello,. How may I help you?

USER: I am planning to visit Korean war Veterans Memorial at Washington, can you please book my ticket?

ASSISTANT: Ok. Please provide your travelling airport codes.

USER: My airport codes are from Washington, DC-IAD to Washington, DC-DCA.

ASSISTANT: May I know your travel dates?

USER: My planned dates to travel is from 07/15 to 07/17.

ASSISTANT: Connecting flight 1005 can be booked with airline UA. Ticket price is 100. Shall I book ticket.

USER: You please proceed for booking.

ASSISTANT: Ticket is booked.

USER: Thank you for being helpful in reserving a ticket.

ASSISTANT: Thanks.