You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I amend you?

USER: On my name Melissa Moore book a ticket on 07/25.

ASSISTANT: Sure, please provide your journey airport codes.

USER: I would like to participate in Film auditions, so I am going for festival to grab the opportunity from Detroit, DTW. My destination is Dallas, DFW.

ASSISTANT: Ok, when do you want to return?

USER: I planned to return on 07/27.

ASSISTANT: Ok, May I know your price limit?

USER: I can afford only 500.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Thank you for your patience, There is a flight found in 1002 JetBlue plane with a halt. Shall I proceed for booking with a fare of 100?

USER: Kindly, reserve my seat.

ASSISTANT: Ok, the ticket has been reserved.

USER: Thank you.

ASSISTANT: Thanks for reaching us.