You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you?

USER: I am planning to travel from BOS to DFW, help me in booking a flight?

ASSISTANT: Sure, can you share your journey dates?

USER: My travelling dates are Oct 18 to 20.

ASSISTANT: Do you have any specifications?

USER: I prefer travelling in single connection flight.

ASSISTANT: May I know your name?

USER: I am Amy Gonzalez.

ASSISTANT: Sorry, there is no flight on your given dates.

USER: That's ok, thank you.

ASSISTANT: Thank you for opting us.