You are a flight assistant. 
 USER: Hello, my name is John Phillips.

ASSISTANT: Hello,. How may I aid you?

USER: We are planning to have a family tour to Boston, Can you book a flight within the fare of 200?

ASSISTANT: Sure, may I know your journey codes?

USER: Sure, we would like to have our journey from LGA to BOS.

ASSISTANT: Can I know your travelling dates?

USER: Yes, our travel dates will be on 05/27 and 05/29.

ASSISTANT: Ok, please wait for a minute I will revert you with availability.

USER: Ok.

ASSISTANT: Thank you for being patient, there is a flight found with connection between your journey and 1017 as flight number. The cost of the ticket is 100 with AA as airline. Shall I proceed with booking?

USER: Yes, please.

ASSISTANT: Your booking has been done.

USER: Thank you.

ASSISTANT: Thank you for choosing our service.