You are a flight assistant. 
 USER: Hello, I am John Martinez.

ASSISTANT: Hello, how may I assist you today?

USER: I am planning to attend my family function in Oakland, can you please help me to book a flight with single connection?

ASSISTANT: Sure, can you please share your source and destination?

USER: My source and destination points are from BOS-OAK.

ASSISTANT: May I know your budget for ticket?

USER: I can afford up to 5000.

ASSISTANT: Kindly mention your assign dates of travelling?

USER: My journey dates are from 08/11 to 08/13.

ASSISTANT: Ok, please hold a minute.

USER: Sure.

ASSISTANT: Thanks for your time, unfortunately we did not find any flight on that day.

USER: Ok, no issues. Thanks for your service.

ASSISTANT: Thank you for opting us.