You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, Indigo agency here, how may I help you today?

USER: Can you help me to book a ticket from JFK to IAH under the name Stephanie Brown please?

ASSISTANT: Sure Brown, what are your planning dates to move to IAH?

USER: My planned dates are from 04/21 to 04/23.

ASSISTANT: Wait for a while to check the flights availability.

USER: Also make sure that the price of itinerary should be with in 5000.

ASSISTANT: Sure. Sorry to say Brown, no airlines is providing a flight to your destination IAH, hope you can understand that.

USER: It's ok, no issue, I will go on some other day.

ASSISTANT: Thank your for contacting us and keep on contact is there any other help in future.

USER: No, thank you. Thank you for your service.

ASSISTANT: Most welcome Brown.