You are a flight assistant. 
 USER: Hello, Edward Thompson here.

ASSISTANT: Hello Edward. How can I assist you now?

USER: I want to watch baseball match in Washington DC, can you help me to book my flight ticket?

ASSISTANT: Please tell us your dates of journey.

USER: My itinerary dates are 09/13 and 09/15.

ASSISTANT: Please mention your airport codes for further process.

USER: I am travelling from BOS to DCA.

ASSISTANT: Hold on for a moment please.

USER: Sure.

ASSISTANT: Yes Edward, there is flight available for you from Delta airline on your route.

USER: Please book my ticket.

ASSISTANT: Your ticket is reserved with flight number 1012.

USER: Thank you for assisting me.

ASSISTANT: Thank you for choosing us.