You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I render you today?

USER: Can you please help me with booking a flight ticket from BOS to SFO?

ASSISTANT: Sure, can you please let me know your travel dates?

USER: My travel dates are Apr 17 and 19.

ASSISTANT: Please let me know if you need a connection in between your journey.

USER: I need a connecting flight.

ASSISTANT: Do you have any other requirements?

USER: I prefer economy class.

ASSISTANT: May I know your name to proceed further?

USER: My name is Anthony Evans.

ASSISTANT: Ok, please wait for a minute.

USER: Ok.

ASSISTANT: Sorry, there were no flights found on your route.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for reaching us.