You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Elizabeth Perez.

ASSISTANT: How may I help you today?

USER: I planned to attend for a meeting in OAK, can you please help me to book a flight ticket from IAD?

ASSISTANT: Sure, let me know your travel dates please?

USER: I prefer to travel on May 29 and May 31.

ASSISTANT: Do you have any specific depart and arrival timings?

USER: I would like to return back in afternoon.

ASSISTANT: Ok, is there any class preference?

USER: No.

ASSISTANT: May I know your connection limit?

USER: I prefer to travel in a connecting flight.

ASSISTANT: Do you have any airline preference?

USER: No.

ASSISTANT: Hawaiian airline is providing connecting flight with the ticket fare of 200 and depart time is 15:00 PM, arrival time is 19:00 PM. Shall I proceed?

USER: Ok, please confirm my booking.

ASSISTANT: Your ticket has been confirmed by flight number 1009 and an economy class.

USER: Thank you for your help.

ASSISTANT: Thanks for choosing us.