You are a flight assistant. 
 USER: Hello. My name is Deborah Hall.

ASSISTANT: Hello, how may I help you?

USER: I would like to book a flight ticket to meet my mother in Washington, can you help me for booking a flight ticket from EWR to DCA?

ASSISTANT: Sure, help me with the trip dates?

USER: My travelling dates are Aug 08 and Aug 10.

ASSISTANT: Do you have any specifications?

USER: I prefer to book a normal cost airline.

ASSISTANT: Let me know your timings schedule?

USER: My return time is morning.

ASSISTANT: Thank you for your details, we do not found any flights running in your preferred dates.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for reaching us.

USER: Welcome, have a nice day.