You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is George Garcia, can you help me to book a flight ticket from CA - OAK to NY - LGA?

ASSISTANT: George Garcia, I am glad you have contacted us. I will help you.

USER: Thank you for the positive response.

ASSISTANT: George Garcia, do you need a direct or connecting flight?

USER: My dates of the journey are Feb 10 and 12 respectively. I need a direct flight for the above dates.

ASSISTANT: Thank you for the letting me know.

USER: Ok, please make sure to book a airlines of normal - cost.

ASSISTANT: George Garcia, I regret to inform you that there are no flights available that matches your preferences.

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

ASSISTANT: Thanks for reaching us. Have a happy time.