You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I am Jennifer Edwards. I would like to book a ticket from BOS to HOU, can you please help me out?

ASSISTANT: Sure Jennifer, may I know your dates of journey please?

USER: I am travelling on these dates April 9th and 11th.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Sorry Jennifer, there is no flight found as per your travelling details.

USER: Ok no problem, thank you for your services.

ASSISTANT: You are welcome.