You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you?

USER: I am Melissa Johnson here, I want to reserve my ticket from BOS to LGA, can you please help me?

ASSISTANT: Sure, let me know your travelling dates.

USER: Sure, my planned dates of journey are from 03/09 to 03/11.

ASSISTANT: Please share your connection limit.

USER: Yes, I need a connecting flight.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Unfortunately, there are no flights available based on your details.

USER: Ok, no problem. Thank you for your service.

ASSISTANT: Thank you for choosing us.