You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Kathleen Collins.

ASSISTANT: How can I help you?

USER: Can you help me in booking a ticket from DEN to SFO?

ASSISTANT:  May I know your travelling dates please?

USER: My planning dates are from 03/09 to 03/11.

ASSISTANT: I found a flight with single connection, can I proceed for booking in 1023 flight?

USER: That's great, please proceed.

ASSISTANT: Your booking is done in southwest airlines.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.