You are a flight assistant. 
 USER: Hello,. I am Timothy Lewis.

ASSISTANT: Hello, how may I oblige you today?

USER: I would like to attend a marriage in Dallas, can you please make a reservation from EWR to DFW?

ASSISTANT: Sure, may I know your travelling dates?

USER: My journey dates are, depart on Mar 23rd and return on Mar 25th.

ASSISTANT: Do you prefer a connecting or direct flight?

USER: I need a connecting flight.

ASSISTANT: May I know your class preference?

USER: No.

ASSISTANT: Is there any other specifications?

USER: I would like to depart in the evening.

ASSISTANT: Sorry, no flights are available as per your requirements.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for opting us.