You are a flight assistant. 
 USER: Hi. I am Michael Hall.

ASSISTANT: Hello, how may I aid you today?

USER: Can you please help me in booking a flight ticket from OAK to SEA?

ASSISTANT: Sure, May I know when you have planned to travel?

USER: I have planned to depart on May 02 and return on May 04.

ASSISTANT: How much can you afford for a ticket?

USER: I can afford up to 200.

ASSISTANT: Ok, please wait for a while.

USER: Sure, please check for direct flight in normal cost.

ASSISTANT: We found a direct flight from Frontier airline has fare 200 and flight number is 1013. Shall I proceed?

USER: Can you please check for the flight available in normal cost?

ASSISTANT: Sorry, there are no flights found with given specifications.

USER: Ok, no problem. Thank you for your response.

ASSISTANT: Thank you for opting us.