You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: I would like to visit Lincoln Memorial in Washington DC - DCA, can you help me in booking a connecting flight?

ASSISTANT: Sure, may I know your planned travel dates?

USER: My planned journey dates are 04/22 and 04/24.

ASSISTANT: Please provide me your source point.

USER: My boarding airport is Denver, CO - DEN.

ASSISTANT: Your good name please.

USER: My name is Joshua Lewis.

ASSISTANT: We are glad to say that, we found an airline: UA, flight number: 1016 and price is 100.

USER: You can proceed.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you for opting us.