You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I abet you today?

USER: I am Patrica Taylor. I am planning to go to visit arts museum at Dallas, DFW. Can you please book a ticket with fare 500?

ASSISTANT: Sure, can you please provide your journey dates?

USER: My trip dates are 03/19 to 03/21.

ASSISTANT: Do you prefer any connections in between journey?

USER: I need connecting flight.

ASSISTANT: May I know your source point please?

USER: Source code is Houston, IAH.

ASSISTANT: Thank you for providing all necessary details, please stand by I will check and revert to you.

USER: Sure.

ASSISTANT: Thank you for waiting, sorry there is no flights found on your particular days of journey.

USER: No problem. Thank you.

ASSISTANT: Thank you for connecting with us. Have a good day.