You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you today?

USER: Can you please help me to book flight ticket from LAS to HOU?

ASSISTANT: Sure, can you please help me with your planned travel dates?

USER: My trip dates are Mar 26 and Mar 28.

ASSISTANT: Ok, do you have any airline preference?

USER: I am comfortable with any airline.

ASSISTANT: Is there any time concern for the journey?

USER: I do not have any particular timings to travel.

ASSISTANT: May I know your class requirement?

USER: I prefer an economy class.

ASSISTANT: Would you like to have any lay off in your journey?

USER: Yes, I require  a connecting flight.

ASSISTANT: Ok, please share your name to proceed further.

USER: I am Catherine Taylor.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT: United Airlines has a connecting flight with number 1007 for fare 300, shall I proceed?

USER: Yes, you can proceed.

ASSISTANT: Your ticket is reserved in economy class.

USER: Thank you.

ASSISTANT: Thank you for choosing us and have a safe flight.