You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Barbara Smith.

ASSISTANT: Ok.

USER: Please book a flight ticket from New York, EWR to Philadelphia, PHL.

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Please, share your arrival and depart date.

USER: Sure, My travelling dates are from 10/26 to 10/28.

ASSISTANT: Kindly, mention your fare limit.

USER: I can bare up to 1000.

ASSISTANT: We are sorry to inform you that, no flights are available with fare 1000.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for reaching us, have a good day.