You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: Can you please book a flight ticket from CLT to PHL?

ASSISTANT: Sure, let me know your travelling dates.

USER: Thank you. I have planned my travel dates as Sept 29 and Oct 01.

ASSISTANT: Please share your connection limit.

USER: I am looking for single connecting flight.

ASSISTANT: Do you have any specifications?

USER: I would prefer economy class to travel.

ASSISTANT: Can I get your name?

USER: Sure, myself Joshua Miller.

ASSISTANT: Sorry, there are no flights found based on your details.

USER: Oh! It is sad to hear. Anyway, thank you for your time.

ASSISTANT: Thank you for choosing us.

USER: Most welcome.