You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I want to book a connecting flight to visit New York to attend a meeting. Can you book a normal-cost airline?

ASSISTANT: Let me know your travelling dates.

USER: I will fly on Feb 26 and return on Feb 28.

ASSISTANT: Can I know your airport codes?

USER: My source point is BOS and my destination is EWR.

ASSISTANT: Let me know your name.

USER: My name is Gary Martinez.

ASSISTANT: Sorry, no flights found for your travelling dates.

USER: Ok, thank you for the information.

ASSISTANT: Thank you.