You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how can I aid you?

USER: Please book a ticket from San Francisco, CA-SFO to Austin, TX-AUS. I'm Nancy Hernandez.

ASSISTANT: Sure, may I know your travelling dates please?

USER: 06/15 is departure date and return is by 06/17.

ASSISTANT: Do you need any connection?

USER: Yes, connections limit is 1.

ASSISTANT: Wait a minute please.

USER: Sure.

ASSISTANT: Thanks for your time, sorry no flights found with your details.

USER: Thanks.

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