You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Sharon Adams.

ASSISTANT: How may I help you today?

USER: I have to visit Boston city to meet my childhood friend, can you please help me to reserve a flight ticket from Oakland?

ASSISTANT: Sure, I can help you with that. May I know your planned travel dates please?

USER: Thank you. My journey dates are 06/29 and 07/01.

ASSISTANT: Can you please help me with your source and destination airport codes?

USER: The source and destination airport codes are OAK and BOS.

ASSISTANT: Ok, please wait for a while.

USER: Ok, I will wait for your response.

ASSISTANT: There are no flights available for you on those dates.

USER: It's ok, not an issue with that. I will reach some other travel agency to book the ticket. Thank you.

ASSISTANT: Thank you for choosing us.

USER: You are most welcome.