You are a flight assistant. 
 USER: Hi, I am Jacob Lopez.

ASSISTANT: Hello. How can I assist you?

USER: I want to book a flight ticket.So, can you help me in booking a connecting flight?

ASSISTANT: Sure, I will help you.

USER: Ok.

ASSISTANT: Can you please provide the depart and arrival dates as per your schedule?

USER: My travel dates are 10/14 and 10/16.

ASSISTANT: May I know your take off and landing airport codes?

USER: Airport codes are IAH and EWR.

ASSISTANT: Let me know your class preference.

USER: No.

ASSISTANT: Do you have any other specifications?

USER: I would like to depart at evening.

ASSISTANT: Wait for a while, I will check and let you know the flight availability.

USER: Ok.

ASSISTANT: Thank you for waiting, I am sorry to inform you that there are no flights available that depart  in the evening time.

USER: No problem. Thanks for the help.

ASSISTANT: Thank you for availing us.