You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: I want to take part in Boston marathon, so please book my ticket from CLT to BOS.

ASSISTANT: Sure, may I know your departure and arrival dates?

USER: My itinerary dates are June 15 and June 17.

ASSISTANT: May I know your name Please?

USER: Larry Hall here.

ASSISTANT: Do you have any connection limit?

USER: I am looking for a connecting flight.

ASSISTANT: Is there any specifications?

USER: Normal-cost airlines provide best service to their customers, so I want to travel in it.

ASSISTANT: Sorry, there are no flights found on your journey dates.

USER: No problem, thank you.

ASSISTANT: Thank you for reaching us.