You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Brian Perez.

ASSISTANT: How can I aid you?

USER: I want to book a flight from WA - SEA to DC - IAD to meet my aunt. Please help me in booking a flight ticket.

ASSISTANT: Sure, We are here to help you.

USER: Thank you.

ASSISTANT: Can I know your travelling dates?

USER: My travelling dates are from 02/17 to 02/19.

ASSISTANT: Do you need any connecting flight?

USER: Yes, I need one connecting flight.

ASSISTANT: We found a Hawaiian airline, flight number:1015 and the price is 100.

USER: Please proceed for booking.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you for booking.

ASSISTANT: Thank you for reaching us.