You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Eric Evans here.

ASSISTANT: How may I help you?

USER: I need your help in booking of a flight ticket from HOU to SFO for an important business meeting, can you please help me out with booking of a flight ticket on those locations?

ASSISTANT: May I know your travel dates?

USER: I want to take off on 01/06 and please book my return ticket on 01/08.

ASSISTANT: Sorry, there is no flight found basis on your details.

USER: Oh! Sad to hear that. Anyway, I will choose another alternative to go there. Thank you.

ASSISTANT: Most welcome.