You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Jonathan Robinson here.

ASSISTANT: Jonathan, how can I help you?

USER: I want to go to meet my family. Can you book my ticket from IAH to EWR?

ASSISTANT: Please share your travel dates.

USER: My travel dates are from 09/04 to 09/06.

ASSISTANT: Sorry, no flights found.

USER: It's fine. Thank you for your information.

ASSISTANT: Thank you for reaching us.