You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Donna Evans.

ASSISTANT: Donna, how can I aid you?

USER: Can you help me in booking the ticket from IAD to PHL?

ASSISTANT: Please mention your travelling dates.

USER: My planning dates are from 11/18 to 11/20.

ASSISTANT: UA airlines with 1 connection flight is available for you.

USER: Please proceed.

ASSISTANT: Your ticket is booked in 1017 flight.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.