You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Brenda Brown.

ASSISTANT: How may I help you?

USER: I am fascinated with camping and chosen Angel Island at Oakland as my spot for camping. Can you help me in booking a ticket?

ASSISTANT: That's a good idea, It's a nice place for camping. Could you please provide your airport codes?

USER: My home town is Dallas and nearest airport is DFW. Please find availability to OAK.

ASSISTANT: On what dates you are willing to travel?

USER: As September is good time for camping, please find the availability on dates 09/28 and 09/30.

ASSISTANT: Sorry, no flights are available on your requested dates.

USER: It's sad news, anyways, I will find other means of transport.

ASSISTANT: Ok, thank you for contacting our agency.

USER: Thank you for the information.