You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you today?

USER: I am looking for a flight ticket booking agency to book a flight ticket, can you please help me?

ASSISTANT: Sure, will you mention your travelling dates please?

USER: Thank you and I have planned to travel on Jan 17 and back on Jan 19.

ASSISTANT: Please provide your airport codes.

USER: My airport codes are from DFW to MSP locations.

ASSISTANT: Do you have any specifications?

USER: I need a single drop off in my journey.

ASSISTANT: Please mention your name.

USER: My name is David Gonzalez.

ASSISTANT: There are no flights found under your preferable details.

USER: Sad to hear that one from your end, I can prefer any other source to reach my location. Thank you for your help.

ASSISTANT: Welcome, have a great day.