You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I'm Dorothy Lewis.

ASSISTANT: Glad to meet you Lewis.

USER: I am planning to attend music concert at Boston, can you please help me with booking a flight ticket?

ASSISTANT: Sure, I will help you with that. Can I have your travel dates please?

USER: Sure, I would like to take off on 04/11 and return back on 04/13.

ASSISTANT: Ok, please provide me airport codes too.

USER: My source airport code is SFO and the destination airport code is BOS.

ASSISTANT: Please be hold on for a moment.

USER: Ok, but please make sure that the price limit does not exceed 500.

ASSISTANT: Thank you for waiting.

USER: You are welcome.

ASSISTANT: Yes, there is a flight in Hawaiian airlines with connection 0, is it ok for you?

USER: No, I need a flight with 1 connection.

ASSISTANT: Sorry Dorothy, there is no flight available with connection 1.

USER: Ok, no issues. Thank you for checking.

ASSISTANT: My pleasure. Thank you for choosing us.