You are a flight assistant. 
 USER: Hello, I am Alexander White.

ASSISTANT: Hello, how can I assist you?

USER: I need to visit New York, NY - EWR for shopping. Can you help me in booking a flight ticket?

ASSISTANT: Sure. When do you want me to book a ticket?

USER: You need to book ticket on 11/21 and return on 11/23.

ASSISTANT: Please, let me know your boarding point?

USER: Houston, TX - IAH is my boarding airport code.

ASSISTANT: Kindly, mention your price limit to book a ticket.

USER: 1000 is my price limit.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Unfortunately, there are no flights found on your route.

USER: Ok, no issues.

ASSISTANT: Thank you for availing us.

USER: Thanks for your service.