You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I am Richard Garcia. I want to book a ticket from SFO to BOS to attend seminar, can you help me in booking?

ASSISTANT: Sure, may I know your planned travel dates?

USER: I am departing on Jan 30 and return on Feb 01.

ASSISTANT: Do you have any specifications?

USER: I need a flight which departs in morning time and return in evening time.

ASSISTANT: Do you have any other specifications?

USER: I want a flight with connection limit 1.

ASSISTANT: Ok, please wait for a while.

USER: Sure, take your time.

ASSISTANT: Thank you for waiting. Sorry to say, there are no flights available for your desired intent.

USER: That's ok, thank you for your information.

ASSISTANT: Thank you for reaching us.