You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you today?

USER: Can you please assist me in booking a flight ticket from CLT to SFO?

ASSISTANT: Sure, when would you like to travel?

USER: My depart will be on Feb 20th and return on Feb 22nd.

ASSISTANT: May I know your name for the booking process?

USER: Rebecca Robinson.

ASSISTANT: Do you have any preferences for this trip?

USER: I need a flight with single connection.

ASSISTANT: Sorry, no flights were available at this moment.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for reaching us.