You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I'm Michael Smith.

ASSISTANT: Smith, how may I help you?

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

ASSISTANT: Sure, please provide your trip dates.

USER: Sure, I would like to take off on 07/29 and return back on 07/31.

ASSISTANT: Please hold on for a while.

USER: Ok, but please make sure that the price limit does not exceed 200.

ASSISTANT: Do you have any other specifications?

USER: Yes, I need a flight with 1 connection.

ASSISTANT: Sorry, no connecting flight is available on your route.

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

ASSISTANT: Thank you for contacting us.