You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: I would like to attend live music concert at San Francisco, can you please reserve ticket from ATL to SFO?

ASSISTANT: Sure, I am here to help you in booking. Can you please share your travel dates?

USER: Sure, my planned travelling dates are from Jul, 31 to Aug, 02.

ASSISTANT: Let me know your connection limit.

USER: Flight has to be with a single connection.

ASSISTANT: Do you have any specification?

USER: No, thank you for asking.

ASSISTANT: Sorry, no flights are available on your preferable travel dates.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: Ok, may I know your name?

USER: Sure, Emily Walker here.

ASSISTANT: Thank you.