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

ASSISTANT: Hello, how can I support you today?

USER: Can you please book a ticket on 11/01?

ASSISTANT: Sure, may I know your airport codes?

USER: I want to travel from New York, EWR to Washington, DCA to meet my nephew.

ASSISTANT: Can you please share me your another date to travelling?

USER: Return is on 11/03.

ASSISTANT: Do you need any other specifications?

USER: I need connecting flight.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Sorry to inform you that there is no flight found on your requested dates.

USER: No problem. Thank you.

ASSISTANT: Thanks for approaching us, have a great day.