You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I want to travel New York for attending a business meeting there. Can you please book a direct flight to New York from Boston?

ASSISTANT: Sure, may I know your planned travel dates?

USER: My departure date is 07/18 and please book my return ticket also on 07/20.

ASSISTANT: Ok, can you help me with your source and destination airport codes please?

USER: My departure airport is BOS and destination airport is LGA.

ASSISTANT: There are no direct flights available on that route.

USER: It's ok no problem, I will go with another airline.

ASSISTANT: May I know your good name please?

USER: Sure, my name is Samuel Roberts. Thank you for your information.

ASSISTANT: Welcome, thank you for choosing us.