You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Myself Angela Allen, I need to schedule my trip to New York for next week. Can you please help me in booking the ticket from IAH to EWR?

ASSISTANT: Yes, I can help you. Can you share me your travelling dates?

USER: I will take-off 12/19 and again I will be return back on 12/21.

ASSISTANT: Give me a moment.

USER: Sure.

ASSISTANT: Sorry to inform you that there are no flights found on your requested dates.

USER: Not a big problem, anyhow thank you for your help.

ASSISTANT: Thank you.