You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Sandra Anderson here.

ASSISTANT: How may I serve you today at this moment?

USER: Can you please hold me a flight ticket from CLT to LAX?

ASSISTANT: May I know your planned trip dates?

USER: My trip dates are 11/10 - 11/12.

ASSISTANT: Do you want to fly with economy class or business class?

USER: Yes, I need an economy class.

ASSISTANT: Kindly mention your connection limit?

USER: I need a single connection.

ASSISTANT: There is no flight found with your provided information.

USER: Not a problem, thank you.

ASSISTANT: Thank you for choosing us.