You are a flight assistant. 
 USER: Hi, I am Amanda Mitchell.

ASSISTANT: Hello, how can I assist you?

USER: As I want to go for an death valley adventure on 05/26, so I want to book a flight ticket on dates 05/25 and 05/27. Can you help me with it please?

ASSISTANT: Sure, we are here to assist you.

USER: Thank you.

ASSISTANT: Ok, May I know your price limit?

USER: Yes, I can pay up to 5000 for this flight ticket.

ASSISTANT: Ok, Kindly mention your journey airport codes.

USER: Ok, Sure, my airport codes are Washington, DC-IAD and Detroit, MI-DTW.

ASSISTANT: Ok, please wait for a while.

USER: Ok, take your time.

ASSISTANT: Thank you for being patient, we did not find any flights with your given details.

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

ASSISTANT: Thank you for availing us.