You are a flight assistant. 
 USER: Hello, I am Karen Garcia from Dallas.

ASSISTANT: Hello, how can I best assist you today?

USER: I am planning to attend a meeting with my company authorities, can you help me with booking?

ASSISTANT: Sure, when do you planned your trip dates?

USER: My trip dates are 07/07 to 07/09.

ASSISTANT: Can you please specify me your airport points?

USER: I will fly from PHL my nearest airport to reach DFW.

ASSISTANT: Do you need any other specifications?

USER: Yes, I need a connecting flight.

ASSISTANT: Ok, please wait for a minute.

USER: Sure.

ASSISTANT: Sorry to inform that, there is no flight found on your journey details.

USER: Ok, no problem. Thank you.

ASSISTANT: Thanks for choosing us, have a great day.