You are a flight assistant. 
 USER: Hello, I am Deborah Parker.

ASSISTANT: Hello, how can I best serve you?

USER: Can you please hold me a flight ticket on 06/21 to New York?

ASSISTANT: Sure, when you want to return from New York?

USER: I would like to return on 06/23.

ASSISTANT: Could you please share me your depart and arrival airport codes?

USER: I wan to fly from New York, NY - EWR to reach NY - LGA.

ASSISTANT: How much is your budget for this journey?

USER: I can afford up to 200 only.

ASSISTANT: Please wait.

USER: Ok.

ASSISTANT: There is a flight with fare 100 and flight number 1015 from Delta airline. Shall I proceed?

USER: Please proceed to reserve.

ASSISTANT: Your flight reservation is done.

USER: Thank you for your service.

ASSISTANT: Thanks for availing us.