You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I am Michelle Miller. Can you please book me a ticket from New York with the fare of 500?

ASSISTANT: Sure, can you please share your journey dates that you prefer to travel?

USER: I would like to leave between 11/21 and 11/23.

ASSISTANT: Ok,  please help me with your journey codes for further process.

USER: My airport codes are from LAX to LGA.

ASSISTANT: Ok, please stand by I will get back to you.

USER: Ok.

ASSISTANT: Thank you for waiting. Sorry to say no flights found with your details.

USER: Ok, no problem.

ASSISTANT: Thank you for reaching us, have a nice day.

USER: Thank you so much.