You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Lisa Lee here.

ASSISTANT: In which way I can help you today?

USER: I would like to visit San Francisco for a business trip, can you please help me out with booking of a flight ticket to go there?

ASSISTANT: Sure, I am happy to help you in booking flight ticket.

USER: Thank you.

ASSISTANT: Could you please let me know your travel dates for booking flight ticket?

USER: Sure, I am planning to leave on 04/27 and please book my return ticket on 04/29.

ASSISTANT: Can you please mention your airport code names?

USER: I want to travel from ATL to SFO.

ASSISTANT: Thank you for providing your travel details. I will put the conversation on hold to check the best flights available in your route.

USER: Sure, take your time. But please make sure that flight should be with connection 1.

ASSISTANT: Sorry for the inconvenience no connecting flights available in this route as per your requested dates.

USER: Oh! So sad to hear that. Anyway, I will choose another alternative to go there. Thank you for the information.

ASSISTANT: Thank you for reaching us, have a good day.

USER: Welcome.