You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Can you book a flight from IAD to AUS on the name Jessica Phillips?

ASSISTANT: May I know your desired travel dates please?

USER: Sure, I planned on Feb 16th and Feb 18th respectively.

ASSISTANT: Do you have any specifications?

USER: I would prefer a normal cost airline with 1 stop over between my journey.

ASSISTANT: Please wait a while.

USER: Make sure my return journey should be evening.

ASSISTANT: Sorry to say, there is no flight on your desired travel dates.

USER: Not an issue, anyway thank you for checking.

ASSISTANT: Thank you for opting us.