You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Jacob Jackson here.

ASSISTANT: How can I assist you?

USER: I need to travel from DEN to DCA, can you help me in reserving a ticket?

ASSISTANT: Sure, I will help you, May I know your travelling dates?

USER: My trip dates are Jan 10 to Jan 12.

ASSISTANT: Do you have any connection limit?

USER: I need a connecting flight.

ASSISTANT:  Do you have any specific depart and return time for this trip?

USER: My depart time is in the morning.

ASSISTANT: Is there any class preference?

USER: No, I am comfortable with any class.

ASSISTANT: You have a flight 1016 in Hawaiian airline and price 500 with a connection, Shall I proceed?

USER: Sure, please proceed.

ASSISTANT: Your ticket has been booked in business class.

USER: Thank you.

ASSISTANT: Thank you.