You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I would like to meet my father at Dallas, can you please help me to reserve flight ticket from LGA to DFW?

ASSISTANT: Can you help me your name to proceed for booking?

USER: Larry Allen here.

ASSISTANT: Please mention your planned dates to travel?

USER: Sure, my planned travelling dates are Nov, 07 and 09 respectively.

ASSISTANT: May I know your connection limit?

USER: I would be comfortable with single stop over.

ASSISTANT: Do you have any particular timings to travel?

USER: I am comfortable to travel in any time.

ASSISTANT: Is there any other specifications?

USER: Yes, I would like to prefer to travel in business class.

ASSISTANT: Sorry, there is no flights found with required dates to travel.

USER: It's ok, thank you for your information.

ASSISTANT: Thank you for opting our service.