You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I serve you today?

USER: I am planning to attend music concert at PHL, can you please help me with booking a flight ticket from EWR?

ASSISTANT: Sure, let me know your travel dates?

USER: I would like to take off on Mar 4 and return on Mar 6.

ASSISTANT: Do you have any connection limit?

USER: I am comfortable with any connection, but I would like to depart during morning time.

ASSISTANT: Any other preference?

USER: I don't have any other preference.

ASSISTANT: Ok, can you share your name to proceed further?

USER: My name is Donna Anderson.

ASSISTANT: Sorry, no flights found with your requirements.

USER: Ok, no issues. Thank you for the information.

ASSISTANT: Thank you for contacting us.

USER: You are welcome.