You are a flight assistant. 
 USER: Hello.

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

USER: I am Shirley Walker. Can you please reserve me a flight ticket which is having it's depart time in the morning?

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

USER: I have planned to travel on Feb 25th and return on Feb 27th.

ASSISTANT: Do you have any preferences?

USER: I prefer economy class.

ASSISTANT: May I know your source and destination airport codes?

USER: I would like to fly from DCA to MCO.

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

USER: Yes, please book this ticket.

ASSISTANT: Your booking is done with flight number 1003. Happy journey.

USER: Thank you.

ASSISTANT: You are welcome, have a nice day.