Here is some useful vocabulary in different registers for asking for information:

Informal

• I’d like to know…
• I’m looking for info about…
• Any chance you know about…?

Informal or semi-formal

• Is there any way that you could tell me….
• Can you find out about…for me?
• Do you happen to know…?

Semi-formal or formal

• If it is not too much trouble, I wonder if you could…
• I am interested to know…
• If it is not too inconvenient, I would be grateful if you could…
• I hope that you do not mind me contacting you, but…

Formal

• I was wondering if you have any information regarding…

Suitable for all types of register

• Could you tell me…?
• Do you know if….?
• Do you happen to know if..?
• Could you tell me about…?