You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am Ronald Garcia.

ASSISTANT: Nice to meet you Ronald.

USER: Can you please help me in booking a flight ticket from IAH to EWR?

ASSISTANT: Yes, tell me your travel dates please?

USER: I would like to fly on June 14 and return on June 16.

ASSISTANT: May I know your departure and return time please?

USER: I would like to return in the evening time.

ASSISTANT: Do you have any other preferences?

USER: I need a single connection.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT: Sorry there no flights available in the evening time.

USER: Not an issue.

ASSISTANT: Thank you.

USER: Thank you.