You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you today?

USER: Can you please find a flight for my vacations? I will be visiting my hometown in the end of July.

ASSISTANT: Sure, I am here to help you with that, may I know your planned trip dates?

USER: My journey will start on July 30th and my return date is on Aug 1st.

ASSISTANT: Ok, do you have any other requirements?

USER: My depart time will be in evening.

ASSISTANT: May I know your airport codes?

USER: My source and destination airport codes are from JFK to EWR respectively.

ASSISTANT: May I know your depart and return timings?

USER: I have already mentioned my depart time.

ASSISTANT: Ok, can I know your connection limit?

USER: My maximum connection limit is 1.

ASSISTANT: Ok, wait for a minute.

USER: Ok, I will be waiting for your response.

ASSISTANT: Can I know your name?

USER: My name is Katherine Williams.

ASSISTANT: Sorry to say that, there are no flights available based on your travelling dates.

USER: Oh! That's very disappointing to know from your side. Anyways, thank you for checking.

ASSISTANT: Thank you for reaching us.

USER: You are most welcome.