You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I am Eric Garcia. There is a workshop in LAX, so I want to book a ticket from IAD.

ASSISTANT: Eric Garcia, please share your travel dates with me?

USER: My travel dates are 12/05 and return on 12/07.

ASSISTANT: Sorry to inform you, there are no flights found for your provided dates.

USER: It's ok, thanks for your information.

ASSISTANT: Thanks for contacting us. Have a great day.

USER: You are welcome.