You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I would like to visit Denver art museum with my friend, please help me in booking a ticket from OAK to DEN.

ASSISTANT: Sure, may I know your name?

USER: My name is Brian Baker.

ASSISTANT: Ok, please let me know your travel dates.

USER: My planned travel dates are on July 28 and July 30.

ASSISTANT: Ok, do you have any preferences?

USER: I prefer normal cost airline for my trip.

ASSISTANT: Ok, any other requirements do you have?

USER: I need a flight with single connection.

ASSISTANT: OK, please wait for a while.

USER: Sure, take your time.

ASSISTANT: There is a flight available in Hawaiian airlines and the ticket fare is 200 only in economy class. Is that ok for you?

USER: Ok, please proceed for booking. Thank you for your assistance.

ASSISTANT: Your ticket is booked with the flight-1004. Flight departure time is at 7:00AM and arrival time is at 8:00AM.

USER: Thank you.

ASSISTANT: Thank you for choosing us.