You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I am Lisa Lee. Please help me to book a flight ticket from SEA to PHX.

ASSISTANT: Sure, can you please specify me your dates of travel?

USER: My journey dates are from Apr, 27 to Apr, 29.

ASSISTANT: May I know your depart and return timings?

USER: I need to return in the evening.

ASSISTANT: Do you have any requirements?

USER: I need a single connecting flight.

ASSISTANT: Sorry to inform you that unfortunately there is no flights available by the given details.

USER: Thanks for your information.

ASSISTANT: Thank you for opting us.