You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Sandra Allen.

ASSISTANT: How may I help you?

USER: I am planning to attend music concert at DFW, can you please help me with booking a flight ticket from IAD?

ASSISTANT: Sure, I will help you. Can you please share your planned journey dates?

USER: Sure, I would like to take off on May 17 and return on May 19.

ASSISTANT: Let me know your fare limit.

USER: My fare limit is 5000.

ASSISTANT: Please, wait a minute.

USER: Sure, take your time.

ASSISTANT: Thank you for waiting, there is a flight available with price 100 and single connection in AA airline. May I reserve it?

USER: Yes, please proceed with the booking.

ASSISTANT: Your reservation has been confirmed with flight number 1008 in economy class.

USER: Thank you for your help.

ASSISTANT: Thank you for opting us.

USER: You are welcome.