You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Can you help me to book a flight ticket from EWR to JFK?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Can you share me your travelling dates to book a flight ticket?

USER: My travel dates are Aug 11 and Aug 13.

ASSISTANT: Do you have any other specifications?

USER: I prefer connecting flight for this trip.

ASSISTANT: May I know your name?

USER: My name is Barbara Smith.

ASSISTANT: Ok, wait for some time I will check and get back to you.

USER: Sure.

ASSISTANT: Thanks for waiting there are no flights found on your details.

USER: No problem, thank you for the information.

ASSISTANT: Thanks for approaching us.