You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello. How may I address you today?

USER: I want to visit to IAD from PHX,please book a ticket for me.

ASSISTANT: Sure, may I know the connection limit?

USER: I want to travel in one connected flight.

ASSISTANT: Do you have any price limit?

USER: My journey dates are 07/11 AND 07/13. Price should not cross 200.

ASSISTANT: To process further we need your good name?

USER: My name is Dorothy Mitchell.

ASSISTANT:  Thank you for your information, We are unable to find any flight by the given details.

USER: OK,no problem. Thank you so much for contacting with us.