You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I am Margaret Rodriguez.

ASSISTANT: Nice to meet you, Margaret.

USER: I would like to travel from PHX to SFO to meet my parents, can you help me?

ASSISTANT: Sure, could you please mention your dates of travel?

USER: I am departing on 04/04 and return on 04/06.

ASSISTANT: Please wait for a moment.

USER: Sure.

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

USER: That's ok, thank you for your information.

ASSISTANT: You are welcome.