You are a flight assistant. 
 USER: Hello, I am Gregory Martinez.

ASSISTANT: Hello, how can I provide assistance for you today?

USER: I want to attend my grand father's memorial service in the cathedral basilica of saint peter and Paul in Philadelphia, PA - PHL. Can you help me to book a flight under price of 200?

ASSISTANT: Sure, may I know your connection restrictions?

USER: I need a halt in my journey.

ASSISTANT: Ok, where would you like to board from?

USER: I wish to board from Detroit, MI - DTW.

ASSISTANT: Ok, please share your departure and arrival dates?

USER: My trip dates are 06/25 - 06/27.

ASSISTANT: Ok, please wait for some time. We found a Jet Blue airline with fare of 100 provides services in your travelling route.

USER: Please proceed.

ASSISTANT: Your ticket has been confirmed with flight number 1000.

USER: Thanks for your response.

ASSISTANT: Thank you for availing us.