You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, do you need any help from us?

USER: I am Betty King. I would like to attend the event at Philadelphia Tea Party Ship & Museum in PHL, will you help me to book a flight ticket?

ASSISTANT: I understand your request and will be happy to help you. May I know on what dates you need booking?

USER: My flying and landing date is 05/03 to 05/05.

ASSISTANT: Ok, could you please tell us your location airport codes?

USER: My source airport code is OAK.

ASSISTANT: There is a flight with 0 connection to your destination, is it ok for you?

USER: I need a connecting flight, as my friend is going to join.

ASSISTANT: Sorry, all flight tickets are sold out on your requested travelling dates.

USER: That's ok, thank you for checking.

ASSISTANT: My pleasure. If any questions arise, please feel free to contact us at any time.