You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Janet Phillips.

ASSISTANT: How can I help you today?

USER: Can you check whether any flight is available on 04/20 and return on 04/22?

ASSISTANT: Sure, I will check for you, may I know your airport codes?

USER: I planned my journey from CLT and land at DTW.

ASSISTANT: Please mention your price range?

USER: I can spend up to 500.

ASSISTANT: Please wait for a while.

USER: Sure, I will be waiting.

ASSISTANT: There are no flights according to your requested dates.

USER: No issues, I will try with other alternative. Thank you for your time.

ASSISTANT: Thank you for approaching us.