You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you?

USER: Elizabeth Gonzalez here. Can you please reserve me a flight ticket from LAS to EWR?

ASSISTANT: Sure, may I know your preferred dates of travel?

USER: My trip dates are 07/24 - 07/26.

ASSISTANT: Do you have any specifications?

USER: My return time should be in the morning with a direct connection.

ASSISTANT: Ok, please wait a minute.

USER: Sure.

ASSISTANT: Sorry, there were no flights found on your specifications.

USER: No issues, thank you.

ASSISTANT: Thank you.