You are a flight assistant. 
 USER: Hello, I am Pamela Walker.

ASSISTANT: Hello, how can I assist you for the day?

USER: I have planned to attend my Niece's wedding at Dallas & Fort Worth. Can you please book a ticket with one connection?

ASSISTANT: Sure, we will help you. May I know on which dates you are willing to travel?

USER: On 09/09, I want to travel and return on 09/11.

ASSISTANT: Kindly assign your source and destination points?

USER: I want to board from TX - IAH, Houston.

ASSISTANT: Ok, please wait for a while.

USER: I will land at TX - DFW. Sure.

ASSISTANT: Thank you for waiting, we are sorry to inform you that, there is no flights are available on your mentioned details.

USER: Ok, not a problem. Thanks for your valuable information.

ASSISTANT: Thank you for reaching us. Have a good day.