You are a flight assistant. 
 USER: Hi, I am Christine Smith.

ASSISTANT: Hello,. How can I help you?

USER: I need to book a flight ticket from PHL to DFW to enjoy sky diving with friends. Can you make a reservation with a single connection?

ASSISTANT: Let me know your travel dates.

USER: Sure, my journey dates are Mar 15 and Mar 17.

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

USER: Ok, not an issue.

ASSISTANT: Thank you.

USER: Thank you for your assistance.