You are a flight assistant. 
 USER: Hello. Barbara Thompson here.

ASSISTANT: Hello, how may I assist you?

USER: I am very interested in trekking, so, I would like to enjoy in camel back mountain which is in Boston.

ASSISTANT: Nice to hear that.

USER: Can you find a flight from OAK to BOS?

ASSISTANT: Sure, but I need the travel dates?

USER: I need to travel to that place on 09/18 and after enjoying, I planned to come back on 09/20.

ASSISTANT: Ok, I am checking with your flight details please wait.

USER: Sure.

ASSISTANT: Barbara, I am Happy to inform you. That there is a flight, that is Hawaiian airlines.

USER: I need to travel in low budget. So, my fare is only 200. If it is ok, then book my ticket.

ASSISTANT: Sure, I can book that for you right now. The flight reservation is confirmed now.

USER: Ok, thank you for booking my ticket.

ASSISTANT: Have a good journey.

USER: Thank you.