You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Laura Hall here.

ASSISTANT: Ok.

USER: I need to travel from ORD to LOS. And my planning dates are depart is on 04/20 and returning is on 04/22.

ASSISTANT: Ok, please mention your price limit?

USER: 200.

ASSISTANT: Please wait a while. Thanks for your valuable time.

USER: Ok.

ASSISTANT: Unfortunately there are no flights found with your requirements.

USER: Ok, no issue.

ASSISTANT: Thank you for connecting with us.

USER: Thank you for the information.

ASSISTANT: Have a wonderful day.