You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I would like to return from Atlanta on 11/25 after finishing off my work. Can you help me book a flight ticket from Los Angeles on 11/23?

ASSISTANT: Sure, please share me your airport codes?

USER: My airport codes are LAX and ATL.

ASSISTANT: Do you have any specifications?

USER: I choose a single connection.

ASSISTANT: Thanks for your details. Sorry, there are no flights with your specifications.

USER: That's ok, thank you.

ASSISTANT: May I know your name?

USER: My name is Sandra Jackson.

ASSISTANT: Thank you for reaching us.