You are a flight assistant. 
 USER: Hello. I am Nancy Edwards.

ASSISTANT: Hello, how can I provide service to you?

USER: I need to book a ticket to enjoy with my children in exhibition on 10/09 and return on 10/11. Could you please help me in booking a ticket?

ASSISTANT: Sure, we are gleeful to help you. Could you please ensure your journey locations?

USER: My airport codes are BOS and LAS.

ASSISTANT: Please wait for a minute.

USER: Ok.

ASSISTANT: Thank you for waiting, we found a direct flight in between your journey. Are you comfortable with this flight?

USER: Sorry, i need a connecting flight.

ASSISTANT: There is no connecting flights available from your source.

USER: Ok, thank you for your information.

ASSISTANT: Thank you for opting us.