You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Myself Emily Thompson.

ASSISTANT: How can I aid you?

USER: I want to travel from IAD to PHL in the month of August.

ASSISTANT: May I know the dates of journey?

USER: Please book a flight ticket on 08/30 and 09/01 dates.

ASSISTANT: Sorry, there is no flight found.

USER: It's ok. Thank you for the information.

ASSISTANT: Thank you.