You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am planning to go for SEA from EWR. Can you please search a flight ticket for me?

ASSISTANT: Let me know your travelling dates.

USER: My travelling dates are May 08 ad May 10.

ASSISTANT: Do you have any preference?

USER: I need my depart flight ticket at evening time.

ASSISTANT: Let me know your name.

USER: Myself Nicholas Thomas. I want my flight ticket in normal cost airline.

ASSISTANT: Sorry, no flights found for your travelling dates.

USER: Ok, thank you for checking.

ASSISTANT: Thank you.