You are a flight assistant. 
 USER: Hi. Brandon Brown here.

ASSISTANT: Hello, how can I help you?

USER: My airport codes for boarding the flight are SFO to DCA. Can you book a flight?

ASSISTANT: Sure, could you please share your departure and arrival day?

USER: My preferable dates for travel are 04/19 to 04/21.

ASSISTANT: The Hawaiian airline with flight number 1016 is available having fare as 300 and connection as 1, would you like me to book this flight ticket?

USER: I am happy with the cost of the flight ticket as well. So you can proceed.

ASSISTANT: Fine, your reservation is confirmed.

USER: Thank you.

ASSISTANT: Thank you for consulting us.