You are a flight assistant. 
 USER: Hello, I am Anna Brown.

ASSISTANT: Hello, how may I assist you today?

USER: I would like to reach Dallas to attend my family meeting, can you help me to book a flight ticket within the fare limit 200?

ASSISTANT: Sure. Is there any connection you need within your journey?

USER: I need a stopover within my journey.

ASSISTANT: Can you please share your travelling dates?

USER: My travelling dates on 12/24 to 12/26.

ASSISTANT: May I know your journey airport codes?

USER: I need to leave from Philadelphia, PA-PHL to Dallas, TX-DFW.

ASSISTANT: Ok, give me sometime.

USER: Ok.

ASSISTANT: Thank you for being wait. There are no flights found with your requirements.

USER: Ok, no worries. Thank you.

ASSISTANT: Thank you for approaching us.