You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am planning to attend a automobile workshop in LAS from IAD, can you please book a flight?

ASSISTANT: Sure, please share me your travelling dates?

USER: My travel dates are 10/27 and 10/29.

ASSISTANT: Can I have your name please?

USER: I am Samantha Thomas.

ASSISTANT: Spirit airline is providing a direct flight to your journey route.

USER: But, I need flight with 1 connection.

ASSISTANT: Sorry, there are no flights with your request.

USER: It's ok. Thank you for your information.

ASSISTANT: Thank you and have a nice day.