You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello.

USER: I am Larry Williams.

ASSISTANT: How can I support you today?

USER: I want to book a flight ticket from BOS to IAH to meet my friend, can you please help me to book a flight with fare 500?

ASSISTANT: Sure, I will help you, may I know your travelling dates?

USER: My trip dates are 11/27 to 11/29.

ASSISTANT: May I know your way stations?

USER: I need a direct flight.

ASSISTANT: There is a Frontier 1029 airline with fare of 100 which matches your travelling dates. Sorry, It is a connecting flight.

USER: No, do not proceed.

ASSISTANT: Ok, thank you for approaching us.