You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I want to visit Oakland city in this my summer holidays, can you please book a flight ticket for me?

ASSISTANT: Sure, please share you travel dates.

USER: My departure date is 04/24 and please book my return ticket also on 04/26.

ASSISTANT: Can I know your airport codes?

USER: I want to take off from OAK airport and destination airport is OAK, it is a round trip.

ASSISTANT: Please give me a minute, I will be back with the flight details.

USER: Ok.

ASSISTANT: Yes, the flight 1012 of Hawaiian airlines is available on your requested dates with a price of 100. Shall I proceed?

USER: Please proceed.

ASSISTANT: Can I know your name for booking the ticket?

USER: Sure, my name is Ruth Green.

ASSISTANT: Ruth, your ticket is booked successfully.

USER: Thank you for your help.

ASSISTANT: You are welcome.