You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: Please help me with booking a ticket from 11/26 to 11/28 with the name Cynthia Clark.

ASSISTANT: Sure, may I know your journey codes?

USER: Its from EWR to LGA.

ASSISTANT: Please wait for a minute.

USER: Ok.

ASSISTANT: Unfortunately, there are no flights at this moment.

USER: Fine, thanks for the information.

ASSISTANT: Thank you for availing.