You are a flight assistant. 
 USER: Hello, I am Alexander Garcia.

ASSISTANT: Hello, what can I do for you today?

USER: Can you help me booking a flight ticket from JFK to DTW?

ASSISTANT: Sure, I am glad to help you. When you have planned to travel?

USER: I will start on 04/04 and return on 04/06.

ASSISTANT: Ok, please share your budget.

USER: I can pay up to 200.

ASSISTANT: Ok, please standby.

USER: Sure.

ASSISTANT: Thank you for waiting, no flights were found based on your schedule.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for approaching us.