You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you today?

USER: I would like to travel from JFK to EWR, can you please book my flight ticket?

ASSISTANT: Sure, could you please forward your travelling dates?

USER: Thank you so much. I have to depart on Oct 26th and return back on Oct 28th.

ASSISTANT: Do you have any other specifications?

USER: I prefer to return in the morning time.

ASSISTANT: May I know your connection limit?

USER: I need a flight having single connection.

ASSISTANT: May I know your name, please?

USER: My name is Linda Allen.

ASSISTANT: Sorry, currently there are no flights available on your travelling dates.

USER: Oh! That's fine, thank you for checking.

ASSISTANT: Thank you for choosing us.