You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you at this moment?

USER: My name is Pamela Baker, I want to book a flight from DCA to meet my friend. Can you book a connecting flight for me?

ASSISTANT: Sure, I will help you. Please send your travelling dates.

USER: I will fly on Jan 27 and return on Jan 29.

ASSISTANT: Do you have any class or connection preferences?

USER: I have only connection preference, please find a connecting flight.

ASSISTANT: Do you have any time preferences?

USER: I want my return flight in afternoon.

ASSISTANT: May I know your destination airport code?

USER: My destination point is LAS.

ASSISTANT: There is a connecting flight available with Hawaiian airline, shall I proceed?

USER: Please proceed with booking.

ASSISTANT: Your booking is done with flight number 1026. Happy journey.

USER: Thank you for helping me.

ASSISTANT: You are welcome, have a nice day.