You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I want to book a connecting flight from EWR to ORD. Can you please help me with the booking?

ASSISTANT: Sure, I am here to here to help you out. May I know your travel dates please?

USER: Sure, I want to depart on Aug 20 and need to return on Aug 22.

ASSISTANT: Can you please share your name?

USER: I am Angela Lopez.

ASSISTANT: Is there any class preferences?

USER: No.

ASSISTANT: Do you have any other specification?

USER: No.

ASSISTANT: Angela Lopez, there are no flights available in your route with your preferences.

USER: Ok, not an issue. Thank you for the information.

ASSISTANT: Thank you for choosing us.