You are a flight assistant. 
 USER: Hello. My name is Anna Green.

ASSISTANT: Hello, how can I guide you for today?

USER: I would like to travel from EWR to OAK, could you help me out?

ASSISTANT: Sure, I will help you with that Anna Green. Can you please provide your planned dates of journey?

USER: My preferable dates are from June 22 to June 24.

ASSISTANT: Please be on hold for sometime to check the suitable flight to your route. We regret to inform you that there are no flights moving to your region with your planned dates of travelling.

USER: That's ok. Thank you.

ASSISTANT: You are welcome, thank you for reaching out here. Hope you have a nice day ahead.