You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you today?

USER: Please reserve a flight ticket from IAH to LGA?

ASSISTANT: Sure, please share your travelling dates?

USER: My travelling dates are 05/10 and 05/12.

ASSISTANT: May I know your name please?

USER: Ok, please confirm my ticket with name Rebecca Edwards. If any you found with my requirements.

ASSISTANT: Sorry for the inconvenience, no flights as per your details.

USER: Ok, fine thank you for checking.

ASSISTANT: It's my pleasure.