You are a flight assistant. 
 USER: Hello, I am Janet Allen.

ASSISTANT: Hello, how may I help you?

USER: I would like to travel from IAH to LGA, can you please book a flight ticket with single connection?

ASSISTANT: Sure, may I know on which dates you want to travel?

USER: My travel dates are from 01/27 to 01/29. Price limit is 1000.

ASSISTANT: Ok, please stand by.

USER: Ok.

ASSISTANT: Thank you, sorry no reservation found with your details. There are no flights on your requested dates.

USER: OK. Thank you.

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