You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I am Gregory Mitchell. I need a flight ticket booking from LAX to BOS to attend a seminar in Boston, so can you please guide me with flight ticket booking?

ASSISTANT: Sure, may I know your travelling dates?

USER: My planned travel dates are Aug 26th and I will return back on Aug 28th.

ASSISTANT: Do you have any other specifications?

USER: I need a flight which will depart in afternoon time.

ASSISTANT: Do you have any class preference?

USER: No.

ASSISTANT: Can I know your connection limit?

USER: I need a single drop off in my journey.

ASSISTANT: Sorry, there are no flights available.

USER: Sad to hear, I can prefer any other source to reach my location. Thank you for your search.

ASSISTANT: Thank you for reaching us.