You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Debra Wilson.

ASSISTANT: How can I help you now?

USER: Can you help me in booking from PHX to SFO?

ASSISTANT: Sure, can you please mention the travelling dates of your journey?

USER: My trip dates are 06/24 to 06/26.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry Debra, there are no flights found on your requested dates.

USER: No issue, thank you.

ASSISTANT: Thank you for approaching us, have a nice day.