You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you today?

USER: My name is Pamela Lopez. I need to book a flight ticket with in the range of 1000. Can you help me with booking on 03/30?

ASSISTANT: Sure, I am happy to help you. Can you please provide your airport codes?

USER: Airport codes are LAS to OAK. My arrival day is on 04/01.

ASSISTANT: Ok, please wait for a few minutes.

USER: Sure.

ASSISTANT: Thank you for waiting, No flights were available with your given details.

USER: Ok, No problem.

ASSISTANT: Thank you for connecting with us.

USER: Thanks for the information.