You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

USER: Myself Melissa Gonzalez. I am looking for a flight from LAS to DCA, can you help me in booking?

ASSISTANT: Sure, when are you planning to start and return on?

USER: Sure, my planned travel dates are Oct 13 and Oct 15.

ASSISTANT: Do you need a connecting flight?

USER: Yes, I am looking for a connecting flight.

ASSISTANT: Do you prefer a economy class or a business class?

USER: No, I am not looking for any class.

ASSISTANT: Can I know your departure timing and return timing?

USER: I would like to start my journey for the evening flight so please look for it.

ASSISTANT: Thank you for your details, we found a connecting flight 1001 in economy class which is in Hawaiian airline. Shall I proceed with evening flight?

USER: That's fine, please proceed in booking with this flight.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you for your service.

ASSISTANT: Thank you.