You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I guide you at this moment?

USER: I am Carolyn Garcia, can you help me to book a flight from EWR to OAK?

ASSISTANT: Sure, I am perky to help you. Can you please share your travel dates that you have planned?

USER: My travelling dates are 09/06 and 09/08.

ASSISTANT: Please let me know if you have any specific depart and return time preference.

USER: I need morning flight on my departure date.

ASSISTANT: Do you like to go with a economy class or business class?

USER: I am fine with any class.

ASSISTANT: Thanks for your details, there are no flights available at this moment matching your particulars.

USER: No issues, thank you for your time.

ASSISTANT: Thanks for consulting us, wish you a great day.