You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Sandra Taylor.

ASSISTANT: How may I serve you at this moment?

USER: I would like to attend my friend marriage at New York, can you please help me to book a flight ticket from LAS to JFK?

ASSISTANT: Sure, do you need any lay by in between the journey?

USER: I need a connecting flight.

ASSISTANT: Ok, help me with your travelling dates.

USER: My travelling dates are Jan 03 and Jan 05.

ASSISTANT: Ok, may I know your class preference?

USER: I am comfortable to travel in any class.

ASSISTANT: OK, do you have any other preferences?

USER: My departing time is morning and return time is morning.

ASSISTANT: Ok, please wait for few minutes.

USER: Sure, take your own time.

ASSISTANT: There are no flights found on your requested dates.

USER: No problem, thank you for your information.

ASSISTANT: Thank you for reaching us.