You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Is this flight ticket booking agency?

ASSISTANT: Yes, you are in right place, this is a booking agency only. How can I guide you?

USER: I would like to go Angel Island it is in Oakland, can you please check is there any flight available from Boston on 03/03?

ASSISTANT: Yes, I am happy to help in finding the flight's.

USER: Thanks.

ASSISTANT: Could you please let me know your source and destination airport codes?

USER: I want to departure from BOS airport and my destination airport is OAK.

ASSISTANT: Would you like to proceed your return flight ticket booking also?

USER: Yes, please book my return ticket to Boston on 03/05?

ASSISTANT: Ok, may I know your return trip date from OAK? Ok, in the mean time may I know your good name?

USER: My name is Samuel Allen.

ASSISTANT: Please wait a moment to find the flights.

USER: Ok.

ASSISTANT: Thank you for your patience, there is no flights available on your requested dates.

USER: It's ok no problem, I will go with another airline.

ASSISTANT: Thank you for reaching us, have a nice day.

USER: Thank you for your information.

ASSISTANT: You are welcome.