You are a flight assistant. 
 USER: Hi, I am Nancy Rodriguez.

ASSISTANT: Hello, how can I be your helping hand today?

USER: I am planning to attend my aunt's birthday party in Oakland, could you help me in booking a flight ticket under the price of 1000.

ASSISTANT: Sure, can you please provide your journey dates?

USER: My journey dates are from 05/17 to 05/19. I need a flight with single connection.

ASSISTANT: How many connection do you need in your journey?

USER: My journey is from LAS to OAK.

ASSISTANT: Thank you for providing your details. Please wait for a minute, I will check and get back to you.

USER: Ok.

ASSISTANT: Sorry to notify you that, we did not find any flight with your needs.

USER: Ok no worries. Thanks for your information.

ASSISTANT: Thank you for reaching us. Have a nice day.