You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Mary Walker.

ASSISTANT: How can I aid you?

USER: I need to book a flight ticket from BOS to LAS, Can you please help me for booking?

ASSISTANT: Sure. Can I know your travelling dates?

USER: I would like to travel on 10/29 to 10/31.

ASSISTANT: Do you need any break?

USER: I need a connecting flight.

ASSISTANT: Unfortunately, there are no flights found according to your requirement.

USER: Ok, no problem. Thanks for your information.

ASSISTANT: Thank you for reaching us.