You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: My name is Jack Walker from Washington. I would like to visit Dallas Arboretum & Botanical Garden with my children at Dallas & Fort Worth, TX - DFW. Can you make a reservation?

ASSISTANT: Sure, Do you prefer a direct flight or a connected flight?

USER: I prefer a connected flight.

ASSISTANT: Ok, when do you want to travel?

USER: I have a plan to travel to Dallas on 02/15 and return on 02/17.

ASSISTANT: Ok, Kindly mention your source.

USER: Sure, it is DC - IAD.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Thank you for your time, There were no flights found with your given specifications.

USER: That's Ok, thanks for your help.

ASSISTANT: Thank you for opting us.