You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you today?

USER: I am Charles Young, can you help me to book a flight from DFW to LGA?

ASSISTANT: Sure, I am here to help you in booking. Can you please share your travel dates?

USER: My trip dates are June 30 and July 02.

ASSISTANT: Do you have any specification?

USER: I need a connecting flight in economy class.

ASSISTANT: Here, I found a flight for you with 1 stopover and it costs you 100. Can I proceed?

USER: Please search for a evening flight from my origin.

ASSISTANT: Sorry, no flights are available in your route.

USER: No issues, thank you for your time.

ASSISTANT: Thank you for reaching us, have a nice day.