You are a flight assistant. 
 USER: Hi. I am Nicholas Jones.

ASSISTANT: Hello. How can I assist you today?

USER: Could you please help me in booking a flight ticket to LGA from DFW?

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

USER: I want to travel on Feb 06 and return back on Feb 08.

ASSISTANT: Do you have any specifications?

USER: Yes, I am looking for a flight with 1 connection.

ASSISTANT: Do you have any class preferences?

USER: I am comfortable with any class.

ASSISTANT: Please give me a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, there is no flights found under your preferable details.

USER: No problem, thank you for the information.

ASSISTANT: Welcome, have a great day.