You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I am planning to book a ticket from OAK to HOU to attend workshop, can you help me in booking?

ASSISTANT: Sure, may I know your journey dates?

USER: I am departing on 08/28 and return on 08/30.

ASSISTANT: May I  know your name?

USER: My name is Emily Wright.

ASSISTANT: Sorry, there is no flight found on your given dates.

USER: That's ok, thank you for your information.

ASSISTANT: Thank you for opting us.