You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I am Brenda Allen. Please help me in booking my flight ticket from IAD to EWR?

ASSISTANT: Sure, I am here to help you. Please share your travelling dates.

USER: My travelling dates are Dec 26 and Dec 28.

ASSISTANT: Do you need any connection in between the journey?

USER: I need connecting flight in between my journey.

ASSISTANT: Please share your other preferences.

USER: I need my depart flight at evening time.

ASSISTANT: Wait a minute please.

USER: Ok, sure.

ASSISTANT: Thank you for waiting, we didn't find any flights with your details.

USER: Ok, thank you for checking.

ASSISTANT: Thank you for reaching us, have a good day.