You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I am planning to visit Boston, can you please book me a ticket from LAS to BOS?

ASSISTANT: Yes, can you tell me your travelling dates?

USER: I am planning my journey on the dates of Aug 12 and Aug 14.

ASSISTANT: Do you have any other specifications?

USER: I prefer normal cost airline for this trip.

ASSISTANT: Do you have any preferences?

USER: I prefer connecting flight.

ASSISTANT: Give me a moment.

USER: Sure.

ASSISTANT: Sorry to inform you that there are no flights found on your requested dates.

USER: Ok, not an issue. I will find any alternate for this trip.

ASSISTANT: Can I know your name for documentation?

USER: My name is Ruth Turner. Thank you for providing information.

ASSISTANT: Thank you for reaching us.