You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: Can you help me to book a ticket for the dates I planned which are Mar 2nd and 4th?

ASSISTANT: Sure, could you please share me with your dates of journey?

USER: I have mention above.

ASSISTANT: Sorry, please mention airport codes?

USER: That is ok, please book a ticket from the origin airport BOS to the airport OAK.

ASSISTANT: Are you looking for any other help from my side please?

USER: Yes, I prefer the service provided by a normal-cost airlines.

ASSISTANT: May I know your name please?

USER: My name is Jack Lewis as per my passport.

ASSISTANT: Sorry Jack, there is no flight found as per your travelling details.

USER: That is ok, thank you for providing the information.

ASSISTANT: You are welcome.