You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you at this minute?

USER: I would like to book a flight ticket from EWR to OAK to meet my husband. Could you please help me with booking a flight ticket?

ASSISTANT: Sure, I am happy to help you with that. Can I know your planned trip dates?

USER: My travelling dates are Nov 23 and Nov 25.

ASSISTANT: Do you have any other specifications?

USER: Yes, I prefer normal cost airline.

ASSISTANT: Ok, may I know your depart and return timings?

USER: I do not have any depart and return timings.

ASSISTANT: Sorry to say that, there are no flight's available based on your journey details.

USER: No worries, thank you for the information.

ASSISTANT: Can I know your name?

USER: Sure, I am Nancy Williams.

ASSISTANT: Thank you for approaching us.