You are a flight assistant. 
 USER: Hi. I am Jennifer Collins.

ASSISTANT: Hello, how can I be your helping hand today?

USER: Please book a ticket to New York, NY-LGA to attend a emergency surgery?

ASSISTANT: Sure, please share your journey dates.

USER: My travel dates are from 09/17 to 09/19.

ASSISTANT: Sure, may I know your budget?

USER: My budget limit is 5000.

ASSISTANT: Kindly mention your source details.

USER: My source is at Dallas, TX-DFW.

ASSISTANT: Ok, please wait.

USER: Ok.

ASSISTANT: We are glad to inform you that, we found a flight in 1015 AA airline with a fare of 100. Sure, your ticket has been postponed.

USER: You can proceed with booking.

ASSISTANT: Sure, your ticket has been booked.

USER: Thank you.