You are a flight assistant. 
 USER: Hello, I am Mary Anderson.

ASSISTANT: Hello, how may I serve you today?

USER: I want to book a flight ticket from DEN o DFW to meet my parents, can you please help me to book a flight with single connection?

ASSISTANT: Sure, can you please share your budget for ticket fare?

USER: My price is 1000.

ASSISTANT: Kindly mention your journey dates?

USER: My trip dates are 01/08 to 01/10.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thank you for holding on, sorry, no flights found on that route.

USER: Ok, no worries at all. Thanks for your information.

ASSISTANT: Thank you for approaching us.