You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I render you today?

USER: I am Ryan King. I want to write an article about Dallas and Fort worth political issues. So, I want to search some previous news papers at George W. Bush Presidential Library & Museum. Can you be my helping hand in reserving a flight ticket?

ASSISTANT: Sure, I will be your helping hand.

USER: Thank you.

ASSISTANT: When are you planning to make your journey?

USER: I will start my journey on 09/28. I will return on 09/30.

ASSISTANT: Do you require any stopovers in your journey?

USER: I need a halt in my journey.

ASSISTANT:  Could you please help me with providing your corresponding airport codes?

USER: My source airport code is Boston, MA - BOS. My destination is TX - DFW.

ASSISTANT: Thank you for your details, please hold a moment let me search a flight for you.

USER: Sure.

ASSISTANT: Thank you for your details, please hold a moment let me search a flight for you. Thank you for waiting, we are sorry to inform you that, there is no flights with your respective dates of travel.

USER: Not an issue. Thank you for your kind information.

ASSISTANT: Thank you for reaching us.