You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I want to visit Dallas, can you please help me in reserving my ticket from JFK to DFW?

ASSISTANT: Sure, I am here to help you for this. Could you please share me your trip dates?

USER: Sure, my planned dates of journey are from Jul, 15 to Jul, 17.

ASSISTANT: Do you have any other specifications regarding your journey?

USER: Yes, I want to fly in a connecting flight.

ASSISTANT: May I know your name please?

USER: Sure, my name is Ryan Smith.

ASSISTANT: Is there any other criteria?

USER: No.

ASSISTANT: Sorry for inconvenience, no flights are found with your requirements.

USER: No problem.

ASSISTANT: Thank you very much for contacting our agency.

USER: Anyways, thank you for your service.

ASSISTANT: You are welcome.