You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Linda Clark from Los Angeles.

ASSISTANT: How can I oblige you today?

USER: I need to attend a seminar at Smithsonian Institution Building which helps me in my project at Washington. Can you please help me in booking?

ASSISTANT: Sure, we can help you with it.

USER: Thank you.

ASSISTANT: When are you planning to reach Washington ?

USER: I am planning to reach Washington on 08/09.

ASSISTANT: Which airports do you prefer to take off and land on?

USER: I would like to takeoff from CA-LAX and land at DC-IAD.

ASSISTANT: When would you like to return on?

USER: My arrival is on 08/11.

ASSISTANT: We found a connecting flight with airfare of 100. Can I proceed with booking?

USER: You can proceed with booking.

ASSISTANT: Your ticket has been confirmed in Hawaiian airline with flight number 1005.

USER: Thank you.

ASSISTANT: Thank you.