You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I be there for you?

USER: Can you please reserve my flight ticket from JFK to OAK?

ASSISTANT: Sure, on what dates are you planning to make your trip?

USER: My planned travel dates are May 28th and May 30th.

ASSISTANT: How many connections do you need?

USER: I need a flight with single connection.

ASSISTANT: Do you need a normal cost airline or a low cost airline?

USER: I will prefer to travel with normal-cost airline.

ASSISTANT: At what time would you like to depart and return?

USER: The return time should be morning.

ASSISTANT: May I know your name?

USER: Katherine Miller.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Thanks for waiting, there are no flights available on the dates you requested.

USER: Ok, no issues. Thank you for your service.

ASSISTANT: Thank you for opting us.