You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Jerry Green.

ASSISTANT: How may I help you?

USER: I want to book a ticket from IAD to EWR, can you help me?

ASSISTANT: Can I know your travel dates?

USER: My travel dates are 10/30 and 11/01.

ASSISTANT: Sorry, no flights found for your travelling dates.

USER: No problem, thanks for checking.

ASSISTANT: Thank you.