You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, May I know your good name?

USER: I am Linda Wright.

ASSISTANT: How can I serve you?

USER: As my friends wants me to join in their trip to DFW on 07/16. For that I have to book a ticket under the price limit of 200.

ASSISTANT: Ok.

USER: Can you book a ticket to me with 1 connection?

ASSISTANT: Sure. May I know your arrival date?

USER: And my source point is at EWR on 07/18.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Unfortunately no flights available with your requirement.

USER: Ok, no problem. Thank you for your helping hand.

ASSISTANT: Thank you for reaching us.