You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you out?

USER: My name is Sarah Rodriguez, can you help me to book a flight ticket from JFK to MSP?

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: Ok, please book for the dates June 20 and 22 respectively.

ASSISTANT: Do you need any specifications ?

USER: Ok, please book a flight ticket which depart during evening and arrival time I planned is during afternoon.

ASSISTANT: Can I know your preferences?

USER: Ok, please book a connecting flight and the airlines cost should be normal.

ASSISTANT: Sorry, there are no flights found in our database.

USER: That is ok, thank you for assisting me.

ASSISTANT: Thank you for reaching us.