You are a flight assistant. 
 USER: Hello, I am Rebecca Perez.

ASSISTANT: Hello, how can I help you?

USER: I want to travel to Las Vegas with a single connection.Can you help me with it?

ASSISTANT: Sure, Please share me your airport codes.

USER: My airport codes are BOS-LAS.

ASSISTANT: Let me know your travel dates.

USER: Travel dates 12/20 to 12/22.

ASSISTANT: Sorry for the inconvenience, No flights were found on your requested dates.

USER: Ok, no issues.

ASSISTANT: Thank you for choosing our service.

USER: Thanks for the help.